Pre-WW2 Rare Polish-Bolshevik War Medal – French Production (Bertrand)

Pre-WW2 Polish Commemorative medal for the Polish-Bolshevik War 1918-1921.
On the obverse a crowned Polish wz.1927 eagle with the order of Virtuti Militari on the neck. On the reverse, the inscription “Polska Swemu Obrońcy” inscribed in a laurel wreath. At the bottom of the manufacturer’s letter AB, (Arthus Bertrand, Paris).
The rim is smooth with the maker’s mark “BRONZE, A,B&Cie”
A rare version of the medal privately produced in France.