You guessed it. That was my Dad's wallet, containing his flies. He always had it with him on the stream. Some of the flies still have tippet attached, and look a little chewed by trout. I am trying to get my seamstress wife to help me fabricate a similar wallet with a beautiful synthetic leather we found last week, but she tells me that my fly wallet is less important than making the baby quilt for some grandchild of ours that is due in two or three weeks (our fifth!). I don't know how women can get their priorities so messed up.

My new wallets won't be as nice as Dad's, that's for sure. No hand-tooled silver clasp, and I'm not sure we'll do the two leader pockets either. Just the cover and the felt pages, and simple metal snaps to close it. I wouldn't go to the trouble, but I dislike the plastic boxes, and haven't been able to find any felt-paged wallets on the market—and of course I can't use my father's.
CB, I like the idea of the 3 liter bladder. Didn't know about them, but that makes sense. Thanks for the tip.