There are two types of TV175 legshield badges. The early types fitted to all Series 1's and first production Series 2's (with '1....' prefix frame numbers) have the locating / fixing pin on the rear of the number '7' at the TOP. Later Series 2's (with '2.....' prefix frame numbers) and all Series 3's have the locating / fixing pin on the rear of the number '7' lower down. See the pic.
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