Vintage left & right tuners, probably off an old Japanese bass with 2 + 2 headstock, such as a Gibson copy, Ric copy, or perhaps a Japanese Epiphone. Maybe an old Ibanez or something. As you can see, there is one left tuner and two right. These have the black plastic "gaskets" that fit under the plate and black plastic grommets. Shaft size of 3/8 inch. If you have a bass that uses these, you might as well pick them up just in case you break a tuner.
Oughta be worth $12 for the three shipped to 48 states.
SOLD! 
