Here is two sheet about the Dumas Jump center seat 1961.
I got also the 1955 version here. The 1961 issues got the “Jeep Approved” logo and it’s more specific about jeep model.
Enjoy it!
Here is a nice Sales Flyer CJ3B 1953.
This one advertises the CJ3B for “off the road operation”.
Enjoy it!
Here is two Sales Flyer CJ3B 1954.
I’m not sure about the year but it certainly after 1954 because it’s advertised from Kaiser-Willys.
The first one is about the CJ3B on the oil industry;
The second one is about CJ3B in all days life and notice that the last page is the same as the one advertised for Sales Flyer CJ3B 1953:
Enjoy it!