Collector's guide to pricing porcelain insulators (unipart pin types)
By: by David Bethman.
Publisher: D. Bethman
Published: 1982
Place of publication: [Bellingham, WA] (3307 Bennett Drive, Bellingham 98225)
Language: eng
Number of pages: 50
Subjects: Electric insulators and insulation -- Porcelain -- Collectors and collecting.; Electric insulators and insulation -- Porcelain -- Catalogs.