Luxembourg, 1853, Grand Duke William III, 10c greenish black, Vertical Strip of Three, four ample to mostly very large margins, deep rich color and sharp impressions, tied by two neat strikes of nine-bar rimless grid cancels on 1854 folded cover to London, matching "Luxembourg 29 Juil 1854" cds, endorsed "Via Ostende", reverse with red "Luxembourg, Par Arlon, 20 Juil" and "Ambulant Ouest No. 1, 21 Juil 1854" cds, red crayon "france, Ostende" at bottom left indicating paid to Ostende, partial red London (7.22) backstamp arrival backstamp and manuscript "8" pence due rating, small tape stain at top center not affecting the strip, otherwise Very Fine and scarce use to Great Britain, ex-Houser. Michel Nos. 1 b. Scott Nos. 1a  Estimate $1,000 - 1,500. $0 (Image)