US edition of Graham Stone's classic book, Firing Schedules for Glass, with over 200 pages of firing schedules and technical information about glass. Superb technical reference for the intermediate to advanced fuser. 224 pages, comb binding.
Polarized film, two pieces, each approximately 5 1/2" square. For information about using polarized film for compatibility testing, check out this link: http://www.warmglass.com/Glass_compatibility.htm