The Gillette Super Adjustable 109 PD was the double edge razor to take over for the previous model Super Adjustable 109 PV. The earlier model had a vertical knurling on it's handle. The new PD (Plastic bottom - Diamond knurling) had of course a diamond knurling pattern on it's handle and Twist-To-Open knob. The PD was available from 1980 (A-1) to 1988 (I-2). The PD was in production for eight (8) years and was the last double edge razor Gillette produced; an end of an era! This razor weighs in at 58 grams.
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