2GK, 2XAB 1924 Schenectady, New York

Operators: P.R. Lynn, W. Galloway, C.N. Nebble 2XAB, A.G. Kastenmayer 2GK

A.D.M. Eastern N.Y.
The callsign suffix starting with an "X" was owned by a business!

From the estate of G5BV
Courtesy of G3NDC