Other maker marks

Plomb Tool marks

2 marks.

Plomb ToolMaker name

Marks & lettering

2 marks

ProtoMark wording

Undated

First recorded use: 01/23/1948; Filed: 12/14/1948; Issued: 09/05/1950

ProtoMark wording

Undated

First recorded use: 01/23/1948; Filed: 02/02/1948; Issued: 07/13/1948

Used for pliers, wrenches, sockets