We searched for“Felt & Tarrant Comptometer calculating machine”(identified as Felt & Tarrant Manufacturing Company, confidence: High)
Typical realised range (Gemini estimate): £100-£400
Comparables
68
Median
£1,539
Suggested estimate
£35 – £4,600
25–75% range
£36 – £9,254
Overall range
£2 – £82,000
Distribution
Sell-through 97% of lots sold
52% at premier salerooms
Trend↗ rising +26463% over 6y
Median from 63 sold (all-time — too few recent sales)·hammer prices, excl. buyer's premium — fair-market auction value (retail/insurance replacement runs higher)
137 comparables for “Antique Comptometer Calculating Adding Machine” · page 128 of 6