The lenticular printed,or tridimensional,or just 3-D stamps made Bhutan a popular,some may say notorious,stamp-issuing country. I don´t know if they were the first,or wether there were any other 3-D stamps issued anywhere else. 3-D stamps are not very practicable,because they are rather thick and therefore stiff.They are about 0.8 mm strong and because of that difficult to store in albums.I use vario-plastic pages.But even there they are quite "lively" and move all the time.That is why they often are stored in boxes,making then invisible. I still do own not all of them.Some are not so easy to find and prices can be,for modern stamps at least,rather expensive. Here the first set: issued Oct.30th,1967; (part I of 2) 3 Ch. Gemini 5 Ch. Apollo-unit 7 Ch. moon-landing unit
The set was also issued in three souvenir sheets. The design is unimaginative,to say the least. But probably the stamps were printed as s.s.only and the sets were cut out from s.s. The reason for my guess is,that the singles from sets are all slightly smaller,than those of the s.s. Not by much,but just as much as one might expect,if you try to cut them out,without a trace of white borders.
Pheasants,issued Jan.20th,1968 (all except the values of 4,7 & 9 Nu, what were issued April 23rd,1968). (part I of 3)
The set was issued perforated and imperforated. (The frames and edges are coloured golden,what my scanner cannot show.)
Overprint issue for the Winter-Olympics in Grenoble. The two types (spot the difference !) of overprints were printed as se-tenant pairs,joined at the base-side. Issued perforated and imperforated. Issued Feb.16th,1968. (part I of 2)
Missing another one: 10 Ch. from the monasteries defintives. A bloc of four,bought in the US,is claimed to be on it´s way for weeks. To the next issue: Mythological Creatures,issued March14th,1968. (part I of 3)
Two souvenir sheets (I show one only,because the other one,with the lower values,looks quite similar) were issued on Oct.22nd,1968. Half a year later than the set. And again: a closer look shows,that there are slight differences between stamps of the set and those from the s.s.