I finally got this slate call done today. The pot is sassafras with 1/8" thick by 3.5" Pennsylvania slate over 1/8" thick by 3" glass . The finish is semigloss polyurethane, the striker is purpleheart/ash . All of the rough turning was done by the material supplier , I did the edge relief and side turnings .The materials were procured from this site:
http://www.customsawing.com/, the guy who owns the shop produces finished calls and sells call supplies at pretty reasonable prices , I assembled mine for a total of $25 .