Chapter II · Condition & Valuation 04 / 12

A single hinge-mark can halve a stamp’s value.

£5,000 £4,000 £3,000 £2,000 £1,000 £0 £4,850 £2,100 £1,275 £740 £310 Never Hinged Hinged Fine Used Good Used Fair 1840 Penny Black · Crown Ledger catalogue values, 2024
This is the Stamp Album design system, applied by Curio Design — a design-style library for AI agents. Full Stamp Album guide → designbycurio.com/learn/philately-stamp-album