NEW DISCOVERY by Samwells. RAILWAY STAMP EXHIBITION ITEM. Note SPECIMEN/PROOF strip of five with punch holes AUTHENTICATED by Printer's VIOLET DATESTAMP for March 1893 on reverse (see scans). UNMOUNTED MINT with full original gum. Some tones & minor perf splits but a VERY RARE & IMPORTANT SURVIVAL PIECE. Overall Fine for an item of this type & period. Please look at all the scans to help form your own opinion. Sourced from old-time collection & never previously offered as a single item.