In May 2015 Ebay seller amirenduro2013 (aka bosnian*antiques) from Sarajevo, Bosnia & Herzegovina was offering this Bosnian motorcycle plate. He is selling it as used which it most certainly is not.
This plate is obviously mint, unused and is a design that was never used on motorcycles. This is some sort of sample, presumably from a plate factory in Sarajevo.
Do not buy mint plates or you will end up with rubbish in your collection.