(!!!) (BEST PAIR) 485 National Radio tube engraved base mesh-plate NOS 1930's (6.0ma and 6.4ma) (variant of 27)
485 National mesh-plate NOS 1940's (6.7ma)
485 National Union used/good 1940's (6.2ma)
485 Sparton engraved base used/good 1936 (5.5ma)
485 Sylvania branded Philco NOS 1940's (6.0ma)
485 Sylvania engraved base used/good 1934 (8.3ma)
485 Sylvania NOS 1940's (5.5ma)
485 Sylvania used/good 1930's no printing (7.9ma)
