You can see the captive binding posts and the black painted
frame which are exactly like those on the Artec
and McElroy. The significant differences with this key are that
the J-38 printed on the front of the key does have the dash, and
that the name of the manufacturer is on the lever rather than the
frame.
(click to enlarge)
(click to enlarge)
(click to enlarge)
(click to enlarge)
The Winslow Corporation emblem, the letters "WIN" in a circle,
are also stamped in white ink on top of the bakelite base.
I do not know if there is any meaning for the "2" that appears
at the bottom of the circle.