Page 39 -39 Bottle cap.
1939 - 1940 Standard Vendo (Top)
(On all 39 capacity Tops the thickness of the top plate, above the rubber seal it was sitting on, was about 1/2". On all 23 and 59 capacity Tops it's about 2").
1939 -1940 Master Vendo (Top)
This unit uses the Standard Vendo Top along with the Master Top mounted on the left side.
1939 - 1940 Standard Vendo Manual
Note the 39-bottle opening grill plate in the center, left. It's bottom, left corner is solid, no cut-out.
1941 - 1942 Vendo 139 (Top)
1941 - 1942 Vendo 139 Master (Top)
Note that the Master top is mounted on the right side.
The pictured unit has a water fountain mounted on top, they were an optional accessory.
1941 - 1942 Vendo 139 (Top, opened)
Note the cut-out in the bottom left corner of the 39-bottle opening grill plate. This was for clearance of a water agitator motor, in case it was to be mounted on an electric cooler.
(The pictured unit is missing the Bottle Basket).