Focus / HammondHammondShowing 2 in the collection▸FiltersFilters×Presence✓In collection2Parts machine0No longer in collection0Type✓Typewriters2✓Mechanical Calculators0✓Other Marvels0Edit this queryHammond Multiplex Portableprobably 1919-1921≈MathematicalUnsureHammond No. 121907 or 1908≈In progress
