While talking about the Safari, I just got this nice sticker in my mailbox:
The sticker was part of a advertising campaign. The owner of the sticker got a Lamy T-shirt for free, when the number of the back of his sticker was shown at the shop window of a pen shop...
...probably back in the 80's.
It's taken me a while to find your Lamy Safari sticker post just to check whether yours is the same as mine (apologies for the protective sleeve - hopefully the photo is reasonably clear enough). I've not seen any others but perhaps you have? I'll repost this also in the Safari thread started by Haywoody. Mine also has a number but it's on the front. Nothing on the back of mine.