Description A (lot of 5) Eastern European military hats: a People''s Republic of Bulgaria Officer, size 57; a Czech Air Force Officer, Kras Bros, size 56 (olive green) ; a People''s Republic Romanian Air Force Colonel, circa 1990 (blue); a Yugoslavian Policia hat, circa 1950, grey fitted with a star badge, a blue band and a black visor, size 53, Provenance: The Holt Military Museum, Lafayette, California