Czechoslovakia, Socialist Republic. A Lot of Military Academy Graduation Badges

A lot of three military academy graduation badges, including an early badge, constructed of silver with enamels, the obverse consisting of a white enameled diamond within a silver border, overlaid by a red enameled pentagon bearing a silver Czechoslovak national lion rampant, the reverse with a screw and backplate, marked with a silver content number of “925” and an unidentified silversmith mark, measuring 26.79 mm (w) x 47.90 mm (h), weighing 14.7 grams, some some degradation of enamels evident, in overall better than very fine condition; a later badge, constructed of silver with enamels, the obverse consisting of a white enameled diamond within a silver border, overlaid by a red enameled pentagon bearing a silver Czechoslovak national lion rampant, the reverse with a screw and backplate, maker marked “ZUKOV, PRAHA” and with a silver content number of “900”, measuring 26.54 mm (w) x 47.35 mm (h), weighing 14.8 grams, in near extremely fine condition, and; a badge constructed of silvered bronze with enamels, the obverse consisting of a white enameled diamond within a silvered border, overlaid by a red enameled pentagon bearing a silvered Czechoslovak national lion rampant, the reverse with a screw and backplate with a white plastic washer, maker marked “BIŽ 06, JABOLENC”, measuring 25.22 mm (w) x 45.30 mm (h), weighing 8.9 grams, in extremely fine condition.