Keystone Eye-Testing Set — auction comparables · Snaplot Comparables
We searched for“Keystone Telebinocular Visual Survey Stereoscope”(identified as Keystone View Company Telebinocular Visual Survey Instrument, confidence: High)
Typical realised range (Gemini estimate): £80-£180
Comparables
22
Median
£145
Suggested estimate
£100 – £180
25–75% range
£98 – £235
Overall range
£34 – £653
Distribution
Sell-through 100% of lots sold
0% at premier salerooms
Median from 22 sold (all-time — too few recent sales)·hammer prices, excl. buyer's premium — fair-market auction value (retail/insurance replacement runs higher)
92 comparables for “Keystone Eye-Testing Set” · page 3 of 4
