Alex, I found your dinosaur! Green on a yellow background! Well, I hope at least it's the one you meant. (For those who haven't got a clue what I'm on about, see here.)
I must admit it will probably only appeal if linked to some childhood memory, but that's fine, I have stamps like that as well, which I will maybe show someday.
But seeing that Mongolia was named twice in our ongoing (as in: come on, say which country you think issues the most beautiful stamps) forum thread, which could be considered highly unusual, I thought I'd better delve into a Mongolian catalogue and see what the attraction is supposed to be.
And I must say I didn't have to search for long. Better still: I was hooked as soon as I saw Mongolia's first set, issued in 1924! So I got some in and will show them to you today.
The main design is the same for all seven values. It depicts a Buddhist symbol called the vishvavajra, or the Double Thunderbolt. I'm not too well-informed but if I understand it correctly, the centre is the God of Lightning, who speaks eternal truth, and the four arms if you like are his thunderbolts, or tongues (speaking wisdom). The word vajra (thunderbolt) also means diamond and is representative of the rock hard (i.e. indestructable) and endurable state of Buddhahood.
Now, be all that as it may, it is very much an indigenous design (probably more so than dinosaurs!), and therefore very appealing. And each design has a slightly different background. And also, and I quite like this, even though it's a monstrosity to mount, each value has its own size, so the higher the value, the larger the stamp!
There are of course the usual varieties to collect, imperfs, double prints, and so on, although most are discarded as printer's waste. The only official variety really is the two types of perforation: 13.5 or 10.
And then there's the strange case of the horizontal line of perforations through the middle! Well, apparently these stamps were meant for export and not postally valid, although some of them have again apparently been used.
All in all I must say that my first acquaintance with Mongolia was very positive and it goes to show once again that you should never write off or slack anything before you know what you're talking about. Or after, for that matter, for if even brightly coloured dinosaurs have their attraction to some, then who are we to judge.
See yous later!