Highest Naval Weapons Engineering Academy (VVMYIO), commemorative badge, 1957 issue.
In aluminum and paint, 44.9 x 36.4 mm. There is a maker mark of the Smolensk Machine-Building Factory on the reverse. In excellent condition.
The badge was probably issued only to the members of the faculty and staff of this relatively obscure naval college which opened in 1951. The significance of the numeral "XXX" is not clear - the year of 1957 was certainly not the 30th anniversary of the school. The school was disbanded just three years later, in 1960.