Auction 309-320 - Great Britain 1840–1841 Europe & Overseas - Day 5

1867, 3 d. rose, plate 7, lettered EI-FJ, wmk. spray, perf. 14, used "Gutter block of four", confirming "two-pane" format of Post Office sheets, a spectacular exhibition item, being the only "Gutter" multiple of the 1855/80 Surface Printed issues recorded in the Karl Louis Card Index in used condition, an important piece.