Schrade Cut Co Large Double Picked bone Clip/pen automatic knife

Vintage Schrade Cut Co large double with picked bone scales. This knife was made in Walden, NY sometime between 1916 and 1946 and is the largest of the three sizes of two bladed switchblades made by Schrade Cut Co. It's a model #7503 3/4 with clip/pen blade combination. The knife measures 3 3/4" closed and 8 1/8 inches with both blades open and it has brass liners. The small blade has three patent dates 09, 10 & 16 and is nearly full and mostly shiny with some light spotting. The large blade has some loss from sharpening and is about 95% full with some light scratches. Picked bone scales are in excellent condition with no cracks or chips. The knife works well with both blade tips seating below the liners closed, large blade opens fully with good lockup. The small blade doesn't always open fully, but locks well when open. Both safeties work. Good working example of a vintage American large double bone handled switchblade. EX- condition.