collectable calculators palm tops vintage and retro for sale information history and links

Calculators and Palm Tops

Bowler Countess - Mechanical Calculator in excellent condition - also comes with original cover ! 135 x 170 x 130 mm (5.3" x 6.7" x 5.1"). "Foreign/ Non UK Made", 1950s - 1960s. Addition only by moving the wheels by finger. Clear to zero by turning the crank.

Front and Rear shots

Sinclair Sovereign Calculator ~ RED Led Display. ~Made in England 1970s by Sir Clive Sinclair this sought after 1970s Collectable Calculator is in Nice Little Used Condition & complemented with the original soft Plush carry case. Sinclair designer John Pemberton won a Design Council Award for this better-engineered 1.5 x 5.5 inch Sinclair calculator - VERY VERY RARE