I got my copy of the Padlock Handbook in the mail. Printed in 1988, I think it's identical to the 1970 version. It covers most older padlocks...
Almont "Re-key" padlock, Chicago 741; Corbin 45, 66, 95, Corbin Sesame-series, Corbin 2881, and 436D, 2881, 2951G, 9904; Eagle 04282PS and Supr Security; Hurd; Ilco 315, 320, 343, 344, 384, and 390; Illinois 3500; Junkunc (older American); Lockwood; Master 5 and 1500, Reese; Russwin (interchangeable core); Sargent 8065 and 8088, Schlage 910 and 912; Slaymaker 66, 78, 701, and 855, Taylor 721, 750, 781, Wilson-Bohannon 620; Wise 60C; Yales 60C, 515, 600, 713J, 774, 833-series, and 840.
If you buy old padlocks off ebay or antique stores, it's a good book to have. It includes disassembly procedures (it's nice to know where the brass shackle retaining pins are) and has an exploded view. Key depth/space info, and a review of impressioning and wafer reading are also included.