Magneto identity

Hi i,ve already posted this as a blog .just wondering if anybody knows what make and year this magneto is ,I,m going to put it on my 74 shovel next rebiuld had it tested and it works great (and look really nice too) it has TCME on tme top cover JD INDS on the inside of the cone and on the side of the Magneto it has a plate with the letters CCW and the numbers 22-2c10a   6970191  am really interested in finding out Cheers