Champion No. 1, Champion No. 2, Keystone No. 3

[sumnergeo]

I've seen these in the vintage catalogs but without information regarding the gauge or thicknesses of the three styles.

Here are the gauge/thicknesses for each one:

Champion No. 1, 0.075 teeth; 0.075 to 0.065 along the back from heel to toe; 14 gauge and 14 to 16 gauge along the back.

Champion No. 2, 0.060 teeth; 0.055 to 0.045 along the back; 16 gauge and 17 to 19 gauge along the back.

Keystone No. 3, .070 teeth; .065 to .055 along the back; 15 gauge and 16 to 17 gauge along the back.

I'll try to upload photos of the oddly filed Champion No. 2.