Thanks to the generosity of Walter Stafa who loaned me a copy of his plan book to scan, many more PRR plans are now online! Also, thanks to Pat McKinney who loaned me his plan book with about 300 plans, the earliest being from the 1890's! Also, thanks to Michael O. Brown who sent scans of some other missing plans and to Eugene Diemling who sent me a CD with many more plans that he had and Charles Crawford for filling in some holes. Lastly thanks again to Pat McKinney for loaning me even more plans to add here!
Note that these files require Adobe's Acrobat Reader (version 5 or higher). It's free, just go to http://www.acrobat.com to download it.
| Plan # | Rev | Subject | Creation date | Railroad | C of |
 | 56132 | A | Bridges, Method of numbering and bridge number signs | May. 1897 | PRR | ED |
| 61841 | G | Signs, Approach, post & lamp post | Mar. 1906 | PRR | ED |
| 69675 | A | Signs, whistle and ring, brackets and clamps for attaching to catenary poles | Jun. 1934 | PRR | MO |
| 78000 | D | Signs, letters & numerals for - extended and condensed types | Oct. 1959 | PRR | MO |
| 78150 | D | Signs, keystone monogram and stencils for marking bridges | Sep. 1956 | PRR | MO |
| 78300 | C | Signs, highway crossing, cast iron | Mar. 1958 | PRR | MO |
| 78316 | C | Signs, stop-for crossing watchman and warning disc for track gang watchman | Nov. 1958 | PRR | MO |
| 78400 | B | Signs, Yard limt, reflectorized aluminum | Mar. 1962 | PRR | MO |
| 78405 | C | Signs, speed limit-for temporary speed restrictions | Aug. 1951 | PRR | MO |
| 78470 | B | Markers, property line | Sep. 1924 | PRR | MO |
| 54345 | - | Signs, letters & numerals for - Malleable Iron, for sign posts | Oct. 1889 | PRR | PM |
| 56344 | B | Signs, Trespass, Iron | Jun. 1898 | PRR | PM |
| 56443 | C | Signs, Road Crossing, Iron | Feb. 1899 | PRR | PM |
| 56770 | B | Signs, Yard Limit, Iron | Dec. 1900 | PRR | PM |
| 57631 | D | Signs, Property Corner Stone, Cast Iron Division Post, Mile Post & Center Line Marker | Oct. 1903 | PRR | PM |
| 57688 | E | Signs, Whistle, Ring & Section, Iron | May. 1905 | PRR | PM |
| 57719 | B | Signs, Trespass, Iron-for Private Crossings | May. 1904 | PRR | PM |
| 58506 | - | Signs, Trespass, Iron-for Company's Private Property & Blind Ends of Abutting Streets & Roads | Jun. 1905 | PRR | PM |
| 58755 | C | Signs, Station | Mar. 1906 | PRR | PM |
| 58756 | B | Signs, Approach, post & lamp post | Mar. 1906 | PRR | PM |
| 58756 | E | Signs, Approach, post & lamp post | Mar. 1906 | PRR | PM |
| 58969 | A | Signs, Warning, Iron-for Electrified Tracks | Jul. 1906 | PRR | PM |
| 59387 | - | Signs, Public Notices | Sep. 1909 | PRR | PM |
| 59390 | - | Signs, Slow & Yard Limit | Oct. 1912 | PRR | PM |
| 59539 | C | Signs, Trespass, Iron-for Company's Private Property & Blind Ends of Abutting Streets & Roads | Jul. 1908 | PRR | PM |
| 59745 | - | Posts, Pipe Line, Cast Iron | Oct. 1910 | PRR | PM |
| 60107 | - | Signs, Post, State & County Line | Feb. 1911 | PRR | PM |
| 60146 | - | Signs, letters & numerals for - extended and condensed types | Jan. 1911 | PRR | PM |
| 60203 | - | Bridges, Method of numbering and bridge number signs | Apr. 1911 | PRR | PM |
| 60244 | - | Signs, Road Crossing | Nov. 1912 | PRR | PM |
| 61800 | A | Signs, letters & numerals for - extended and condensed types | Jan. 1911 | PRR | PM |
| 61805 | - | Signs, Letters & Numerals for Call Signs on Interlocking & Block Stations | Aug. 1913 | PRR | PM |
| 61810 | A | Signs, Public Notices | Sep. 1909 | PRR | PM |
| 61820 | C | Signs, Tresspass | Jun. 1898 | PRR | PM |
| 61821 | D | Signs, Trespass, Iron-for Company's Private Property & Blind Ends of Abutting Streets & Roads | Jul. 1908 | PRR | PM |
| 61822 | C | Signs, Trespass, Iron-for Private Crossings | May. 1904 | PRR | PM |
| 61831 | B | Signs, Warning, Iron-for Electrified Tracks | Jul. 1906 | PRR | PM |
| 61837 | - | Signs, stop-for grade crossing watchmen | Jan. 1917 | PRR | PM |
| 61837 | A | Signs, stop-for grade crossing watchmen | Jan. 1917 | PRR | PM |
| 61840 | D | Signs, Station | Mar. 1906 | PRR | PM |
| 61841 | F | Signs, Approach, post & lamp post | Mar. 1906 | PRR | PM |
| 61850 | E | Signs, Property Corner Stone, Cast Iron Division Post, Mile Post & Center Line Marker | Oct. 1903 | PRR | PM |
| 61855 | F | Signs, Whistle, Ring & Section, Iron | May. 1905 | PRR | PM |
| 61865 | A | Signs, Post, State & County Line | Feb. 1911 | PRR | PM |
| 61865 | B | Signs, Post, State & County Line & Corporation & Valuation Section | Feb. 1911 | PRR | PM |
| 61870 | A | Signs, Yard limit & Slow board | Oct. 1912 | PRR | PM |
| 61880 | A | Bridges, Method of numbering and bridge number signs | Apr. 1911 | PRR | PM |
| 70075 | B | Bridges and tunnel warnings | Feb. 1953 | PRR | PM |
| 73915 | A | Target, reflectorized low switch | Mar. 1957 | PRR | PM |
| 78158 | A | Signs, station-reflectorized aluminum | Oct. 1959 | PRR | PM |
| 78301 | A | Signs, Highway crossing-reflectorized, sheet steel & extruded aluminum | May. 1959 | PRR | PM |
| 78316 | A | Signs, stop-for crossing watchman and warning disc for track gang watchman | Oct. 1950 | PRR | PM |
| 78406 | A | Signs, speed restrictions-permanent | Jul. 1954 | PRR | PM |
| 78420 | A | Signs, close clearance-vertical and horizontal | Jan. 1959 | PRR | PM |
| 78470 | A | Markers, property line | Sep. 1924 | PRR | PM |
| 78800 | A | Signs, marking of communication line poles | Oct. 1921 | PRR | PM |
| 78800 | B | Signs, marking of communication line poles | Oct. 1921 | PRR | PM |
| 56344 | A | Signs, Trespass, Iron | Jun. 1898 | PRR | RS |
| 56443 | B | Signs, Road Crossing, Iron | Feb. 1899 | PRR | RS |
| 56770 | A | Signs, Yard Limit, Iron | Dec. 1900 | PRR | RS |
| 57631 | C | Signs, Property Corner Stone, Cast Iron Division Post, Mile Post & Center Line Marker | Oct. 1903 | PRR | RS |
| 57688 | B | Signs, Whistle, Ring & Section, Iron | May. 1905 | PRR | RS |
| 57719 | A | Signs, Trespass, Iron-for Private Crossings | May. 1904 | PRR | RS |
| 58755 | B | Signs, Station | Mar. 1906 | PRR | RS |
| 58969 | - | Signs, Warning, Iron-for Electrified Tracks | Jul. 1906 | PRR | RS |
| 59539 | B | Signs, Trespass, Iron-for Company's Private Property & Blind Ends of Abutting Streets & Roads | Jul. 1908 | PRR | RS |
| 66207 | H | Highway Crossing, Signs and Signals | Apr. 1931 | PRR | RS |
| 69096 | A | Support, Lamp, Switch, Plug type | May. 1924 | PRRS | RS |
| 73916 | B | Target, reflectorized low switch | Oct. 1964 | PRR | RS |
| 73917 | A | Target, reflectorized intermediate or high switch | Nov. 1970 | PC | RS |
| 73917 | B | Target, reflectorized intermediate or high switch | Nov. 1970 | PC | RS |
| 73919 | A | Target, reflectorized low switch for main or yard track use | Nov. 1970 | PC | RS |
| 73919 | B | Target, reflectorized low switch for main or yard track use | Nov. 1970 | PC | RS |
| 78010 | A | Signs, PC Letters and Numerals | Oct. 1968 | PC | RS |
| 78011 | A | Signs, PC 11 degree inclined letters and numerals | May. 1969 | PC | RS |
| 78159 | A | Signs, station-reflectorized aluminum | Apr. 1970 | PC | RS |
| 78161 | A | Signs, station approach | Dec. 1928 | PRR | RS |
| 78166 | A | Signs, station | Apr. 1970 | PC | RS |
| 78300 | B | Signs, highway crossing, cast iron | Dec. 1955 | PRR | RS |
| 78310 | A | Signs, Approach Warning | Jun. 1920 | PRR | RS |
| 78315 | A | Signs, stop-for grade crossing watchmen | Jun. 1920 | PS | RS |
| 78316 | B | Signs, stop-for crossing watchman and warning disc for track gang watchman | Oct. 1950 | PRR | RS |
| 78317 | A | Signs, stop, temporary | Apr. 1970 | PC | RS |
| 78400 | C | Signs, Yard limt, reflectorized aluminum | Jul. 1920 | PC | RS |
| 78404 | A | Signs, speed, temporary | Jan. 1974 | PC | RS |
| 78405 | B | Signs, speed limit-for temporary speed restrictions | Aug. 1951 | PRR | RS |
| 78410 | A | Signs, whistle | Nov. 1968 | PC | RS |
| 78440 | A | Signs, region, division & sub-division | Oct. 1968 | PC | RS |
| 78451 | A | Signs, mile post | Oct. 1968 | PC | RS |
| 78455 | A | Signs, section and sub-division | Dec. 1921 | PS | RS |
| 78480 | A | Signs, post | Oct. 1968 | PC | RS |
| 78500 | B | Bridges, Method of numbering and bridge number signs | Oct. 1921 | PRRS | RS |
| 78800 | C | Signs, marking of communication line poles | Oct. 1921 | PRR | RS |
| 691463 | A | Signs, Yard Limit | Dec. 1954 | PRR | RS |
| 691463 | NOTE | Signs, Yard Limit, note | Mar. 1955 | PRR | RS |
| 78153 | A | Signs, keystone monogram, Long Island Railroad | Jun. 1930 | PRR | TP |
| 73910 | A | Switch lamp stand-low | Feb. 1927 | PRR | WS |
| 78000 | A | Signs, letters & numerals for - extended and condensed types | Jul. 1920 | PS | WS |
| 78000 | C | Signs, letters & numerals for - extended and condensed types | Jul. 1920 | PRR | WS |
| 78150 | C | Signs, keystone monogram and stencils for marking bridges | Sep. 1921 | PRRS | WS |
| 78160 | A | Signs, station | Dec. 1928 | PRR | WS |
| 78163 | B | Signs, call-for interlocking or block stations | Dec. 1928 | PRR | WS |
| 78165 | A | Signs, freight station | Dec. 1928 | PRR | WS |
| 78300 | A | Signs, highway crossing, cast iron | Aug. 1926 | PRR | WS |
| 78310 | B | Signs, Approach Warning | Jun. 1920 | PRR | WS |
| 78400 | A | Signs, Yard limt, reflectorized aluminum | Jul. 1920 | PS | WS |
| 78408 | B | Signs, whistle and ring | Jun. 1927 | PRR | WS |
| 78450 | A | Signs, mile post, state & county line, corporation, valuation sections and division | Jul. 1921 | PRRS | WS |
| 78450 | B | Signs, mile post, state & county line, corporation, valuation sections and division | Jul. 1921 | PRRS | WS |
| 78460 | A | Signs, flanger | Oct. 1924 | PRRS | WS |