1850 / 1957, collection covers, cards, postal stationery and First Day Cover, as well among others Michel number 518-23 with special cancel on registered cover franked with a set, 551-54 with special cancel on registered cover franked with a set, 557-62 with special cancel on registered cover franked with a set, 588 (slightly spotted) right lower corner of the sheet with special cancel on retroactive marked cover, 623-28 First Day Cover, 878-84 First Day Cover, 885-92 First Day Cover, 952-54 FD, 978-80 First Day Cover and so on