Hello and welcome
Heyitstillruns!
Here is what my 61 is using and the blade arrangement.
Does your look like this?
The part book lists it as number 1116545. Other numbers that match are
1116594, 95, 1116604 as well as Delco Remy D1418, 1428, 1430.
I have an old eBay purchase of an AMPCO SWITCH # LS 482 that matches up too.
These are numbers I have run on eBay, and they turn up on occasion but are pricey.
https://www.ebay.com/itm/26473564181...wAAOSwth9ew0bE
https://www.ebay.com/itm/35410846108...8AAOSw-S1ib~UP
Again, these are numbers and links that show what would fit my 61 but may not fit yours, if blade arrangement is different.
Hope this helps and good luck!