Anything is collectable to the right person however I do not believe that that particular ammo would bring much more that shootrer ammo price. I used to buy that Sears ammo, I believe it was made by Federal and as I recall was pretty decent stuff. At least it went bang every time, but then again all the rimfire I shot in the 60's and 70's went bang. It wasnt't until the last ten years or so that I started to see failures to fire with any regularity.