Would you drill holes in your pre-war Gibson to mount these?
Actually those aren't a bad knock off of Vega D tuners (Pittmans?), minus the "ball point pen spring", sort of combining the sliding top cap of the Gibson Kluson tuner. The cam itself looks quite stout -- not that the cam was ever the weak point of either design.
Looks like quality work to me. LOTS of early banjo pickers used homemade D tuners (like Earl did) until they found out Gibson and Vega would sell their versions in the aftermarket.
Many people did. Vega, Ode, Gibson and others were installing them new in the 1960s.
These, however, look like homemade modifications of Grover or Waverly friction pegs. They don't look like any of the commercial pegs from Beacon, Pittman, Ode, Kluson or others from the late '50s through the '60s.
I made myself a set of these in the early 70's and I still have them.
( I )===='---<: :}
You should see the set I cobbled together one time. Compared to mine the ones in the original post look like they were made in a factory.
That all explains it, homemade!
