Fred Locke

Unipart Porcelain Insulators

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Here photographed together for the first time in 100 years.  Three styles (left to right) were as listed in the 1904 Locke Catalog: #101 23 kv M-2220B Fred Locke marking 7-1,  #103 23 kv M-2250 Fred Locke marking 6-1, and. # 100 27 kV U-964 Fred Locke marking 7-1. There is an alternate version of the U-964 with a 1" pin hole.  It was listed as catalog #100a.  The #101 was also cataloged as available with a 1" pin hole as catalog #102 . The U-964 is rather common in collections and comes with both pin hole versions.  The #103 is extremely rare with less then six known to exist.  The smallest #101 is a one of a kind Fred Locke style.  There are no known examples of the 1" pin hole version of this style. The #101 (M-2220B) uses the same inner skirt as the M-2332 and M-2335 all three styles use the same plaster mold set to make for the top shell and are MLOD. 

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