I've also got a Winchester 67 made about 1936 W/grooved forearm.
I've refinished the stock with linseed oil, and cold blued to barrel/action.
My Dad had one of these from when he was a boy, and I always wanted one with the grooved forearm.
Found this one in a pawn shop for $100. and spruced it up a bit.
Sorry, I can't do pictures.
Virgil B.