Snail Mail (The Old Two Centamos Postage Stamp)

Here's a nice Postage stamp from the past....I suspect from the thirties or forties.    (If anyone can come back with the actual date I would be grateful.)   I do not have one but wonder how much it may be worth to the right collector.

The point for me is that it is obviously for International Mail and secondly:- What great advertising! (and so true)

The prices may have changed but the temperatures certainly haven't.

The Postage stamp is breathing it's last as the Net takes over........ RIP