For those of you who aren't familiar with that phrase, it refers to the trade of the collodion artist (ie photos). And this may only spark the interest of folks who were in the hobby prior to 1996. Claude Levet, former collodion artist for the living historians/ re-enactors, has released a CD-Rom collection of photos he took when he was "running the circuit". As a former assistant of Claude's, I found this to be a wonderful time capsule...of sorts. And even if you're not an "old timer", you should still check it out.