Grover G-98 late 1930s nickel tuners for prewar Martin 6:1 ratio

My research tells me these tuners are late 1930s Grover G-98s, which would be correct for Martin model D-28s 000-28s, and perhaps others from that era. 

They came off of a 1940 Gibson L7, but they are not correct or original to that guitar, so I have no idea of their history. But they can be dated by their appearance and the 6:1 gear ratio. They are straight and work fine 

Also, the bushings are push on, which I think is correct for that era, but one of them is a bit lighter colored than the others, and one of the screws does not precisely match the others. So I don't have any provenance for the screws and bushings, but they do work with the tuners and will be included with the sale.

If you are reading this, you probably know more about vintage Martin tuners than I do. and if you spot any errors in this description, please email me and I will correct the ad right away.

The shipping is free to the lower 48 states, actual cost to Canada or the EU.