1977-1982 Peace Tower exhibit, three frames (48 pages, but conclusion page offered separately as it is next issue), 47 pages. The 12c portion of the exhibit, shows the only recorded photo proof in private hands of the 12c value, blocks and singles explaining the production (BABN, CBN), "hole in roof" variety, "broken hour hand" variety, precancel warning strips, one bar tagging coil pair, imperforate strip of four, miscut coil strip of four and eight, block of 14 faint score line but double perforated five vertical rows, postal uses and scarce varieties incl. precancel with one bar tagging, strip of three precancel with shifted perforations and right margin warning pair showing 15mm shift to left, The 14c Peace tower portion shows the ALBINO print (#715b, CV $500), weak print, untagged, one bar tagged, closed blind variety, light in window, missing spire blocks, dramatic shift in two blocks (total 60 stamps, only recorded examples), block of four with extra horizontal H-comb perforation, three dramatic perforated singles, misperforated block of four and 6, offset printed block of four, smear printed block of six, specialized coil end strip and start strip, jump strip, narrow and wide tagging pairs, misperforated, double perforated and imperforate pairs, half bar tagged strip showing only at bottom of stamp, and cover uses. The 17c shows extra tagged single, pre-printing fold and dramatic perforation strip of three, imperforate pair, one bar tagging pair, miscut strips, strip of four with three imperforate, strip of four with two imperforate, narrow tag strip, start strip of 15, fake double perforation strip and how to identify them, detailed analysis of the 1c and 5c booklet stamps including varieties such as missing letters, numbers, scratches. The exhibit represents an opportunity to add the few missing varieties (double paper, printed on gum side etc.) and perhaps expand to include the QEII side profile issues to take the exhibit to five frames. Offered intact to allow a collector to continue this journey in modern philately. Stunning and worth inspection. (Image)