Progress of the Triangulation between Eastern Colorado... — auction comparables · Snaplot Comparables
We searched for“USGS Professional Paper 116”(identified as United States Geological Survey Professional Paper 116, confidence: High)
Typical realised range (Gemini estimate): £40-£160
Comparables
10,000
Median
£194
Suggested estimate
£60 – £580
25–75% range
£57 – £1,254
Overall range
£1 – £2,346,586
Distribution
Sell-through 50% of lots sold
2% at premier salerooms
Trend↗ rising +40% over 8y
Median by grade
VF
£98 n=14
AU
£30 n=21
Unc (MS60-62)
£128 n=27
Gem (MS65-66)
£72 n=29
Proof
£48 n=12
Median from 2,141 sold in the last 36 months·hammer prices, excl. buyer's premium — fair-market auction value (retail/insurance replacement runs higher)
10,000 comparables for “Progress of the Triangulation between Eastern Colorado...” · page 1 of 417
