Set of 76 Used Stamps, Including Martin Decimal Stamps by Harrison & Sons, UK This set includes 76 used stamps, featuring Martin Decimal stamps, which are typical British definitive stamps, manufactured by Harrison & Sons (ordinary perforation, phosphor paper, photogravure), and others. The stamps are mounted on an enlarged A4-size copy of an advertisement for a 72-stamp set by the same company. Stamps believed to correspond to the advertisement have been affixed to the copy. Ten of the 72 stamps are missing, and are marked with an "X" in the attached photos. In addition to the 72-stamp set, 14 other stamps believed to be relevant have been added outside the original photo frame, bringing the total to 76 stamps. The stamps are attached to the backing paper with a very small amount of double-sided tape with the weakest adhesive, so they can be removed without much damage to the stamps if done carefully. Please understand that the classification of Martin Decimal stamps is extremely difficult due to variations in paper, phosphor, etc., and this stamp set may also contain misclassifications. The stamps themselves are relatively well-preserved, but please understand that they are used and may have some wear and tear. Bulk purchases and immediate purchases are welcome.