Tucson: SMRC and Arizona Pioneers' Historical Society, 1967-1993. Seventy-seven issue broken run, various pagination, 8.5x11 inches, articles, reports, events, illustrations, very good newsletter run.
The numbering system began as volume number followed by issue number, each volume beginning with issue #1 until the 21st issue which switched to consecutive issue numbers while retaining new volume numbers each year. The run here includes issues1-48, 50-69, 71-75, 77, 79, 93-95. Issue #29 is a photocopy.