[GreenKeys] model 15 gear identification?

[Steve]

Hi Guys,
After looking for YEARS I've finally found a model 15 TTY machine.
Will pick it up next week. Supposedly in good condition, but who knows
what it'll really be like. No matter, it'll be restored and used.

Have been digging out the few bits and pieces I saved from the model 15's
I've owned in the distant past and found a set of gears. Hoping someone can
help me identify them. The metal motor shaft gear is 7082. The matching fiber
gear is 1569, or close. The numbers on the fiber gear are very hard to read.
At one time I had 66 and 75 wpm gears for the '15. Hoping these are for
one of these speeds. TIA.
                                       Steve W6SSP
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