Bill,
If you plan to stay in the silver striking hobby. And keep on replacing the old caps with air tights. You might want to look in to doing like I do. And buy the new airtight caps by the case(usually 200 in a case). That is the cheapest way to buy them. Talk with JPs Corner about this.

If you are not in our Silver Strike Club($10 a year) and would like to join. Send me a e-mail with your address. And I will send you a application.
Also, I have some strikes to trade --I can send you a list of my traders. E-mail me a list of the strikes you have to trade. And maybe we can do some trading.
It's great talking with you.
Dan SS643

CC>CC #5922