| Author | McDougald, John & Carol | |
| Title | Insulators: A History and Guide To North American Pintype Insulators. | |
| Original Date | 1990 | |
| Notes | Available spiral bound, softbound, and one volume (red or gray hardcover). | |
| Type | Hobby | |
| Version | ||
| Version Author | McDougald, John & Carol | |
| Date | 1990 | |
| Version Notes | Two volumes, spiral bound | |
| Example Type | Original | |
| Size | 8.5" x 11.5" | |
| Pages | 497 |