flat metal piece that locates adjustable mirror control

str12-340 said
They were good enough to tell me that I can get them from Classic Industries at part # MD3600 (although I still can't find the #%$@@! thing in their catalog

Classics search engine is almost as bad as FABO's

https://www.classicindustries.com/product/md3600.html
Watch the shipping charge 9.95 shipping unless you spend 99.00

The ebay link I posted above (521 restorations) is 4.50 shipping same part, he resells classic / oer parts (and he lives around the corner from me)