[Milsurplus] milsurp? tuning dial

[Eric Jones]

de N4TGC Eric

At the Dixiefest (held in Southaven, MS, just south of Memphis, TN this year), I
got a ~4x7" tuning dial which is marked from point-15 (probably mc) to 12, in 5
bands, numbered inside to out.  It has a geared reduction drive from a knob with
3" skirt and dial lock, three mounting studs out the bottom, and an odd dial
stop sticking out the rear, composed of a series of disks with little flanges on
them.

While the dial itself has no markings I could find, the box has a wealth of info
on a label:
2Z3723-188
36852-PHILA-52-51 (61)
STAFFORD MFG. CO. INC.
BROOKLYN, NEW YORK
November, 1953

Anyone recognize this thing - i.e., what it goes to?    e