St. Charles, IL: 1990. First edition. Spiral Bound. INSCRIBED. 172; viii; 325pp. Quarto [28 cm] Illustrated wraps with a black plastic spiral binding. Volume 1 is in near fine condition. Volume 2 is in fine condition. Item #20062
Inscribed by McDougald on the title page. John and Carol McDougald had been engaged in collecting insulators for twenty years at the time this was written.