Earlier than 1954. The two sheets shown above with the same display as mine are from... well... let's look at the trademarks on it.
The trademark
KAMP KING (Serial Number 71433919) was applied for on July 13, 1940, registered on December 24, 1940, first use in commerce 1935-02-00.
The trademark
JACK-MASTER (Serial Number 71411532) was applid for on October 12, 1938, registered on August 22, 1939, first use in commerce 1938-08-30.
The trademark
HAMMER BRAND (Serial Number 71384896) was applied for on October 28, 1936, registered on March 23, 1937, first use in commerce 1882-05-00 (refers to the former owner of the mark, NYKC).
Of the three dates noted for each, the first use in commerce is the most important here, excepting on the renewal of HAMMER BRAND, where the application date is more important.
February, 1935
October, 1938
October 1936.
So 1938 is the earliest likely date the display was made. This conforms with the estimated dating of the Imperial catalog in which it appears.
Further, note the text on the display and catalog image
"The strong, Solid, Patented construction of the new Jackmaster Kamp-King..."
This seems to refer to the 1936 Stiehl patent for the Jackmaster construction:
or possibly Felix Mirando's improvement in 1939: