Up for Buy-It-Now is a new old stock outside rear view mirror shim, Ford part number C1UM-17B697-A. According to my Ford Truck Manual, this is part out the 6" round mirror package C1UZ-17696-D and is used on the following models and years:
1961-1963 Ford E-100 Econoline
The shim is in brand new, never used condition and shows no indication it was ever mounted or installed. It does have some extremely minor light pitting on the surface from many years of shelf storage. Cast on the back is C1UB-17B697-A and the vintage FoMoCo logo.
Please feel free to E-mail me questions. International bidders are always welcome. Thanks for looking!!