Thanks bb forks. The foil sticker on my mixer no longer has any of the data on it.
I was looking at this one ebay which appears to be physically be the same as mine.
ebay.com/itm/IMPCO-LPG-PROPANE-CARBURETOR-MIXER-CA100-CA100-272-/271202651937?_trksid=p2047675.m2109&_trkparms=aid%3D333002%26algo%3DRIC.CAT%26ao%3D2%26asc%3D8%26meid%3D7561334424968947881%26pid%3D100010%26prg%3D1076%26rk%3D3%26sd%3D170927474644%26
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