Calculating machine - Typewriter - Vermon - Olympia
Adhesive tape - Sellotape - Delft
Calculator - Calculating machines - Monroe
Calculator - Calculating Machine Company - Monroe
Addressing machine
Tape dispenser - Bilthoven
Glue pot - Gluton - Talens - Apeldoorn
IBM - International Business Machine Society
Typewriter - Olivetti
Typewriter - The Silent - L C Smith - Groningen
Paperclip - Book
Typewriter - Silent - L.C. Smith
Envelope sealing machine - Secap
Paper
Calculator - DAP
Paper - Processing machinery
Olympia - Typewriter
Calculating machine - Calculator - Facit
Scryption - Writing
Typewriter - Urania - Sewing Machine - Veritas
Advertisement card - Paper - Lacker
