I bought these about a month back along with a big lot of monkey wrenches
(http://i1202.photobucket.com/albums/bb373/johnsironsanctuary/My%20Wrenches/MagWrenches.jpg)
Now you need something with a magneto on it to work on!
Last time I did was an old Harley Sportster with a mag conversion on it.
My 1929 10-20 McCormick Deering, my nephew's '29 L case, my brother's '40 DC Case and several more in the family all have magneto ignitions. So far, we haven't needed to work on them. Magnetos are remarkably dependable even after 80 some years. I just think that the little proprietary wrenches are cool.
Those tiny ones are really neat. When they even included a feeler gauge, cause they know the tractor owner didn't have one. And all those names, Bosch, Delco, Remy, Eiseman, names one doesn't hear anymore.
I do like those North East wrenches, I have a little collection of the very same already, if you would like to sell them let me know, thanks for the pictures
The fifth one from the left on the bottom row:
Looks like a pfleuger reel wrench, for fishing reel maintenance.
(http://farm8.staticflickr.com/7110/7531523794_df919ac1e5_b.jpg)
If it isn't, then that is one I do not have yet in my mag wrench collection!!