(!!!!!) (Best Pair) 328A Western Electric "small punch plate" NOS 1955-1958 (5.3/5.6ma) (Same Gm)
(!!!) (Best Single) 310A Western Electric large punch plate low hours/tests like new 1962 (6.5ma) (highest mA and Gm)
(!!!) (Best Value Single) 310A Western Electric large punch plate NOS 1974 (5.1ma)
(!!!) (Good Value Single) 310A Western Electric large punch plate used/good 1978 (5.4ma)
(sold out) 348A Western Electric "small punch" NOS 1956-1957
11.25.19 (!!!) (Recommended Single) 310A Western Electric small punch plate NOS 1954 in white box (5.2ma)
328A Western Electric "small punch" NOS 1953 in 1955 box (5.1ma)
