Hammond          
        Hammond Typewriter Co., 69. Street and East River,New York, U.S.A.  
        Since 1931: Vari-Typer Inc., 132. Street, New York, U.S.A.  
        Later: Ralph C. Coxhead Corp., 333. Avenue of the Americas, New York, U.S.A.  
           
Models and s/n Y M D Remarks Ref.
           
           
No. 1 Ideal          
  started 1880     Curved keyboard, entire wooden housing, two piece type-shuttle, central "turret" covered with olive celluloid sheet 5,7
           
           
No. 1 Universal          
  1888     No more wooden housing, straight row QUERTY-keyboard, two piece type-shuttle, central "turret" not covered 5,7
           
           
No. 1"b"          
        Ebony keys, curved keyboard, no more wooden housing, two piece type-shuttle, central "turret" covered with olive celluloid sheet 5
           
           
No. 2          
  1893     Small metal tab to lift type shuttle on the front of the "turret", Ideal and Universal keyboard, single piece and curved type-shuttle 4,5
           
           
No. 3          
        Based on No. 2 but with 11 1/3" carriage 5
           
           
No. 4          
        Based on No. 2, regular 8 1/2" carriage, 9 characters/ inch 5
           
           
No. 5          
        Based on No. 2, Ideal keyboard only, triple shift, Greek language 4,5
           
           
No. 6          
        Based on No. 2 but with 16" carriage 5
           
           
No. 7          
        Based on No. 2 but with 20" carriage 5
           
           
No. 8          
  1900     Based on No. 2 but with 30" carriage 4,5
           
           
No. 12          
  1905     No metal tab on front of the "turret", but a curved bracket, that ties ribbon out of the sight after each keystroke 5
           
Special Models          
  1905     3 instead of 2 shifts for double language typing and with high and low position of type shuttle for mathematical formulas 4
  1910     "Express-Duplex" option for two shuttles turnable 180° 4
           
           
Multiplex          
  1913     Two switchable type-shuttles with different typefaces to choose, appearance like No. 12 5
  1916     With metal cover 5
  1922     Variable spacing 4
           
           
Multiplex folding (aka Modell 26)          
  1921-1928     Folding keyboard, a mathematical model available 4,13
           
           
Varityper          
over 300000 1927     Hammond Typewriter Co., from s/n 400000 electrical version 4,7
over 400000 1927     Electric movement 13
  1931     Vari-typer Inc. 4
  1933     typesetting offset device, later electrified 5
  1970     production ended 5