I have to admit, I actually laughed out loud when i saw that picture of the hammer and chisels. Well played sir.
Genius move, until the Chinese start making fake stamps on coins. Then we would need to somehow encapsulate authentic stamps in some kind of sealed plastic, just to make sure we have REAL authenticated stamps of approval. Of course, then others could comment on whether they believe that encapsulation was properly done, and they could signal their approval by putting a mark on the encapsulation protecting the authentic seal of approval of the ancient coin. Of course, then we have to worry about what if this marking on the slab gets damaged, lowering the value of the marking, so we would need some king of "tag protector" to make sure this mark of approval of the slabbed authernticated marking on the ancient coins is mint......ok, now I am just getting dizzy.
Please understand that while I am a serious opponent of slabbing coins (at least ancients) I am a big fan of encased postage stamps and would really like to own some even though they are so terrible recent (1860's). http://en.wikipedia.org/wiki/John_Gault Now the big question: Do any of the big slab companies encase encased postage? I'm not sure how I feel about that one.
Only ancient stamps are of the "lickable" kind. And those you would not actually use for postage anyway ... Christian