Apr 10, 2008 Work on these weapons began in 1962 based largely upon experience gained with the Bofors 57 mm/60. late 1940s n-57 a/c. 622 Find great deals on eBay for 62mm Air Filter in Air Filters. Fifty years ago, production of the 57mm AA-Gun R-10, whose development had begun by the end of …

Read full post