[gmac]

My father-in-law brought me some caps he had in the basement since he knows I'm into brewing beer.  They are crown caps with cork liners.  Not rubber/plastic ones. 
I'm not gonna use them (I didn't tell him that) but I was wondering if anyone knew when they stopped making these?  There's a good chance they've been in his basement for a long, long time.

[Slowbrew]

My mother-in-law offered me a bag of those a couple years back.  The ones she had were from the mid-70's.  The ones you have could be quite old.

Paul

[tschmidlin]

Use a couple of them for fun, and give those bottles to your FIL