Pivot lock shoe identification

A professional from USA says:
I am thinking part# 15-167 or 15-179 patent# 4,610,108 only number on it.
pivot shoe
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Tom from SWISCO responded:
One of the two pivot shoes you picked out very well may work, but I cannot confirm which. You will need to remove your shoe and carefully measure its width and thickness, then see which shoe's dimensions match. If neither match, let me know and we can work fro mthere.
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