WHAT ARE THESE stickpins/lapel pins?..HELP PLEASE.

[tokenhead]

I got these recently and think they look to new to be from 1928..based on back mark i think they could be a Yugoslovia,etc.Type of sports team 80'ish.Can anybody help w/this dilema? If they are old they are inpretty darn good condition!!!Thanks for looking and HH ALL!!!
1 1/4in.long back reads RPU ZAGREB

 

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[Breezie]

Zagreb is the largest city in Croatia. Perhaps the RPU stands for a University, Club, Fraternity, Organization, etc. in Zagreb. Neat finds, Breezie

 

[Takelababy]

Stick pins, usually put on a lapel between the fabric layers.

 

[tokenhead]

Zagreb is the largest city in Croatia. Perhaps the RPU stands for a University, Club, Fraternity, Organization, etc. in Zagreb. Neat finds, Breezie

Thank You...I have seen eastern europeian sport team stick-pins w/same marking's on back hence words in original post/thread...HH Breezie

 

[Critical Recovery]

I have seen that logo before. It has something to do with football or soccer.

 

[sagittarius98]

All I have found is that RPU is a manufacturer of these pins in Croatia. The logo does not match any Zagrebian team from any of the first 4 tiers of the Croatian league, but I will continue to look.