Inheritance gloat - Old 'Arn of a different kind

[Charles Wiggins]

Well, 37 years after my Great Grandfather passed, I finally got the last of my inheritance - a 50 ft. Wardmast'r Nickel Plated Steel Measuring Tape in the original box from Monkey Ward.

78690 78691 78693 78692

Anyone have any advice on determining the vintage? There aren't any dates on anything.