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Very interesting video of fellow Mid Century Austrian artist Carl Auboeck’s (Aubock) patination process on his Optimist/Pessimist figures. You can watch the figures go from bright golden brass to the signature matte black color. Both Walter Bosse and Carl Auboeck were contemporaries working with brass/bronze in Vienna, Austria in the 1950s. This is the same technique Bosse used on Black-Golden Line and is the same process we still use today to patina and polish our figures!