I have had this vintage Singer sewing machine chain stitch attachment loop retainer disc part 21906 for years...included with it I had written it is part of attachment set 161928 for 638E3, 638E6, and 638E7 machines. Do not know anything else about it. No longer have any Singer sewing machines. In good condition.
Either texts (preferred) or phone calls may get a faster reply, still can email but it may take longer for a response.
San Manuel is not in Tucson, it is about an hour's drive or longer northeast depending on where you are coming from. Could meet at Costco between Orange Grove/Ina off Thornydale when we go there (usually during the week and in the morning). We also are in the town of Oracle on Sunday mornings and could meet shortly after 12 noon at the Dollar General in Oracle.
do NOT contact me with unsolicited services or offers