Staedtler pencil case

Some time ago there was a Staedtler pencil case at Yahoo Japan, which was IIRC incomplete. Now there is an auction at ebay Germany, which seems complete Staedtler K77 Mechanical Pencils lead holders Feinminenstifte Vintage 28 Stück | eBay (but with price madness).
Exciting pieces (for me) are the silver “Airliner” (next to the Micrographs HS) and the Polo (?) with golden trimmings (and an ad on it?). More infos about those two would be interesting …