Many of the booklets in this series have good examples of machine operation and applications. Also, for the first time, letters and numbers have been used as coordinates to label the hubs on the plugboards. This series includes the following: NO. OF TITLE FORM NO. DATE PAGES CARD PUNCHES AND VERIFIERS Card-Punching and Verifying Machines 52-3176-0 1946 21 Alphabetical Verifier, Type 055 52-3295-1 1946 4 INTERPRETERS Card Interpreters, Type 550, 551, and 552 52-3178-0 1946 14 REPRODUCERS Automatic Reproducing Punch, Type 513 52-3180-0 1945 22 End Printing Reproducing Punch, Type 519 52-3292-1 1946 26 Electric Document-Originating Machine, June Type 519 52-3292-2 1948 26 COLLATORS Collator AM-25 1943 31 Collator Counting Device C.R. 9178 1942 12 CALCULATING PUNCHES Electric Multiplier, Type 601 52-3408-1 1947 47 Calculating Punch, Type 602 52-3409-0 1946 83 Calculating Punch, Type 602 52-3409-5 1947 93 Calculating Punch, Type 602-A (Preliminary Manual) 22-5489-0 1948 59 Electronic Multiplier, Type 603 52-3561-0 1946 5 Electronic Calculating Punch, Type 604 22-5279-0 1948 51 TABULATORS Accounting Machine, Type 402 and 403 (Preliminary Manual) 22-5654-0 1949 146 Alphabetical Accounting Machine, Type 404 52-3395-1 1946 96 Typical Applications, Alphabetical Accounting Machine, Type 404, with Multiple Line Printing 22-3771-1 1947 47 Alphabetical Accounting Machine, Type 405 AM 17 (1), 1943 90 Revised 1/1/43 Nov. Alphabetical Accounting Machine, Type 405 52-3179-2 1948 81 AUTOMATIC PRINTING CARRIAGES Bill Feed, Type 920 52-3184-0 1945 21 Form Feeding Device 52-3235-0 1946 11 Automatic Carriage, Type 921 52-3183-0 1945 36 Tape-Controlled Carriage (Preliminary Manual, Revised) 22-5415-1 1948 27