Marking on humbucker bobbin and surrounds question

[the great waldo]

Hi All

Does anyone know what the H with an I and P between the uprights of the H on some humbucker bobbins and surrounds means. At a guess I would say itīs a trade mark of the company that makes the mouldings. Anybody got any info on these markings ?

Cheers

Andrew

[JGundry]

Hughes Plastics Inc. St Joseph MI.. Out of business. Used to do work for Whirlpool which is in Benton Harbor MI..

[Possum]

It may be possible to date bobbins by the number as well....