When this Singer 29k arrived (a customer’s machine) and got cleaned up, it was missing it’s finish along the upper arm, main arm, base, and the treadle was pretty much bare metal.
It was also missing some important parts which we were able to source, and we also upgraded the hardware in the treadle to standard threading, and re-tapped the base of the machine to an M10 machine thread. This will make replacing these screws as easy as going down to the local hardware store if one gets lost.
Sometimes I see before and after pictures where it looks like all a person had to do was wipe off a few decades worth of dust, which acts as a wonderful protect-ant.
This machine took more than 20 hours in our workshop, after cleaning and detailing the small parts the machine was re-enameled, with careful attention made to preserve the original decals. As the machine would never look perfect or brand without a complete strip down and new decals, we used old fashioned methods to do a sympathetic restoration of this nearly 100 year old beauty.