We searched for“Sheaffer vintage fountain pen”(identified as Sheaffer, confidence: High)
Typical realised range (Gemini estimate): £60-£300
Comparables
10,000
Median
£230
Suggested estimate
£70 – £380
25–75% range
£66 – £595
Overall range
£0 – £5,417,947
Distribution
Sell-through 94% of lots sold
0% at premier salerooms
Trend→ steady +7% over 8y
Median from 11,904 sold in the last 36 months·hammer prices, excl. buyer's premium — fair-market auction value (retail/insurance replacement runs higher)