twertsy
Well-known member
The bottom rat is Bonney branded, the top is Bethlehem Spark Plug company with a Bonney forged stamp. The middle one is confusing. Exactly the same Bonney patented design, but it appears to have a Herbrand forge mark and is also BSP branded. Anyone have any insight on how Herbrand may have been producing Bonney patented designs in the 20s?? The Bonney rats are coded 1925 and 1924.
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