Here is an original starter switch for much of the 1928 year. There is a lock washer between the screw on button and the shaft. The other 1928 switches I have, or have seen, also have this lock washer. This is an original Ford lock washer with the serrated outside edge, but it isn't listed in either of my 1928 parts books, January 1, 1928 and October1, 1928 Parts Price List. Was this an oversite in the books, or did someone add these lock washers to the switches many years ago?
Also there is black paint on the shaft including the very tip that fits into the main body, which tells me the shaft was painted seperately. The button has no trace of paint nor cad plating, but has a thin coat of rust. Was the button originally cad plated, or was it painted? Thanks