Re: Service Manual early 60's??
Dave;
The manual for your s/n is 90-25500 but I don't see any on ebay at the moment. There are several places on the net offering the manual but some of them are qute high priced, maybe you can find one.
Searching for a year for your 60 and I have s/n 1303411 as a 1960 so I would think yours is 61 or 62 at the most.
Gerry