Vintage Norco and A&W Typewriter Erasing Shields - $13 (Hamburg)
Taylor Rd. near East Eden Rd.
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These are metal shields to allow erasures on top of carbon paper when erasing on typewriter. The Norco one has No. 429 imprinted which you can not see on the picture it is silver imprint on silver. Mfg. on one is Norco and the other has Auli & Wiborg Carbon & Ribbon Division.