need these window parts

A distributor from Elverson says:
Hi, please see attachment for pics of some truth hardware part I need.
Can you identify them and price them for me.
User submitted photo of their window operator.
Profile picture of Tom
Tom from SWISCO responded:
It's hard to say based only on the stamps. I would start by looking at our 39-031 and 39-032. These may be what you have, but carefully compare our pictures and dimensions to your own hardware to confirm, just in case.
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