We searched for“Benjamin Martin compass microscope folding brass”(identified as Benjamin Martin (type) Compass Microscope, confidence: High)
Typical realised range (Gemini estimate): £500-£2000
Comparables
53
Median
£803
Suggested estimate
£350 – £1,550
25–75% range
£345 – £2,710
Overall range
£30 – £80,000
Distribution
Sell-through 100% of lots sold
4% at premier salerooms
Median from 52 sold (all-time — too few recent sales)·hammer prices, excl. buyer's premium — fair-market auction value (retail/insurance replacement runs higher)
125 comparables for “Compass-Type Microscope” · page 10 of 6