15xx Auto Reverser Confusion

[CaveDiver]

15xx Auto Reverser Confusion

After the post about the pink wheels and the photo Al posted of an assembled auto wind, I looked at the pictures of the old parts from my 1560 auto wind and I noticed something odd. Are both these reversers below part number 7912? Are they both correct for a 15xx auto wind? From the pictures below, notice how they are different sizes. Could this have worked?

Sorry about all the dust. I was in a hurry.




Notice how the smaller one has 10 teeth (goes with Red wheel) and the larger one has 9 teeth (Goes with pink wheel):


Al’s picture of an assembled auto wind got me thinking how these old parts of mine worked? Is there something amiss here?

Here is Al’s photo:


Thanks