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also Rampinelli, REG brand model 273, most commonly seen in off-white but also produced in colours

these are not strictly speaking "plugs" as they are caps designed to fit over the end of the bar
VELOX are nice, heavy and of the wrong national origin for an Italian machine
GASLO tend to run ~120USD/
pr on ebay
both of the Campag models illustrated above are far too late for a 1960's era machine
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