Insulators Home > Insulator Styles > Glass > Non-Pintype > Spool Unassigned 1
Crown Jewels, August 1970: "Report of an S.B.T.& T. Co. No. 5 spool"
from Ed Milner
http://www.crownjewelsofthewire.com/archive/article.asp?month=08&a=08Letters.htm&Year=1970
(http://www.nia.org/archives/periodicals/cj_1970.htm)
http://www.hemingray.info/wanted/images/sbtco-spool.jpg
http://hemingray.net/glass_pages/insulators/u_r_insulator/source/no_cd_sbt.html
Insulators Home > Insulator Styles > Glass > Non-Pintype > Spool Unassigned 1
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