In digging through a box of "stuff" from another era, I found a couple of Colt screwdrivers. These are the key chain type, round with three different blade sizes. Is there any value to these. What era pistols did these accompany? I had read where someone on this forum had gotten a boxed gun and mentioned the screwdriver. They are of little use to me as I do not collect Colts. I also have a set of dice with Colt on them.