Three Old Brass Keys For Sale

Three keys of the type commonly used on railroads in the past. All are brass and well worn but sound and not broken or dented.1 1/2 inch key with 3 holes cast in the handle. This might have been used long ago for signal relay boxes. 2 1/4 inch marked I & I S R R with an S on the bottom of the handle. 2 inch with I T S marked on one side and ADLAKE and S on the other side of the handle.I am also including 4 old date nails in fair condition. They are marked 25; 33; 23; 22.