Dear Sir,
what about trying to solve this enigmatic aircraft (not that much!)
Cheers and good luck
Carson
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Polikarpof PO2
Polikarpov U2 possibly the sp version.
Yes Kiwimac it is the world famous double-decker (biplane) Polikarpov U-2 and in this case as you rightly say the SP version.
Sorry Gumalangi I think credit goes to Kiwimac as the exact denomination and version was quoted by him.
Regards
Carson
Here is my next one:
A stab in the dark…maybe a latvian LKOD?
Carson
OK, I’m surprised it stumped folk for as long as it has. It is the Polikarpov o3-4. Here is another picture of the beast.