This ad for Marine versions of the L-134 engine appeared in the October 06, 1947, issue of The Key West Citizen newspaper. As the ad notes, these are the “J1” models, which I take to mean that the serial numbers might start with “J1”?
Advertising & Brochures Research Archives
Roy Rogers, Post Cereals, & the Win-A-Jeep Family Contest
Roy Rogers and Post Cereals had a licensing agreement for an unknown period of time, but it at least covered the period between 1952-1955 (I’m sure the Roy Rogers & Dale Evans archives can better answer the time period question). Together, the entertainer and cereal manufacturer produced a series of TV spots, print ads, and merchandise.
Here’s an example of a Post Cereal Commercial with Roy Rogers, Pat Brady and a hint of Nelly Belle (see many more commercials here):
In 1952 and 1953, Roy Rogers teamed up with Post Cereals to produce a series of 36 pop-out cards about Roy’s epic adventures. View references to the names for the entire list of cards here.

Card #4 “Pat Brady and Hi Jeep, “Nelly Bell”. Of course, the front is actually the same size as the back. See better images here.
Post Cereals also released a series of 3D cards with Roy Rogers, a few that included jeeps, that required the use of 3D glasses. Here are two examples that include jeeps (there are some of these 3D items for sale on eBay).

And one more off of eBay:
In 1953 Post Cereals joined Roy for a series of pins, one of which included NellyBelle on it.
1951 ‘Jeep’ Farm Mower Brochure
This mower in this brochure looks like a Newton design. It’s form FS-514100.
Newton brochure from the late 1940s (See five early mowers here):
1951 Tool Bar Implements Brochure
Marked form FS-F514105, this brochure highlights some of the tool bar implements available for jeeps, including the Rotary Lister Planter, the Conventional Moldboard Middle Buster, The Roatry Bottom Middle Buster, the Field Cultivator and the Row Fertilizer Attachment.
Barry Thomas suggests that some or all of these may be ex-newgren items that, following Newgren’s struggles, Willys-Overland began to market and sell under ‘Jeep’. I’m not as versed as some folks on the individual implements, so maybe someone can confirm this?
One thing is clear to me; Willys-Overland did not devote much marketing resources to this sales effort. These brochures are pretty simplistic compared to many other marketing documents of the time. Maybe there was a small team with a tight budget assigned to try to make something happen with this niche of farming and implements?
1951 ‘Jeep’ Hydraulic Lift
Unlike the other brochures in this group of seven, this was the only one-page brochure and it lacked a form number.
May-June 1958 Salespower
I can’t imagine that Willys was fielding enough Land Rover questions that the sales department thought it needed to highlight the Jeep’s advantages over it?
Feb. – Mar. 1958 Willys Salespower
I do think it’s odd that while the brand ‘Jeep’ dominates much of the consumer facing literature by 1958, the marketing department still uses the ‘Willys’ term. Of course, the company’s name is Willys Motors, but that’s pretty much a legacy name by this time (at least in retrospect).

Runnels-Wiggins Dealer Ads Feb. 1948 – Apr. 1948
UPDATE: The March 19, 1948, ad art was later used for this 1949 CJ-3A brochure.
The firm of Caver-Wiggins advertised jeeps for sale in the Pascagoula, Mississippi, Chronicle Star newspaper from July 1946 to November 1947.
In October of 1947, the Caver-Wiggins corporate charter was changed and the firm renamed to Runnels-Wiggins, with Julius Wiggins and Davage Runnels taking control of the entity.
In November of 1947, a week after the final Caver-Wiggins jeep ad, Runnel-Wiggins began advertising jeeps in the Chronicle Star. The ads only appear to last through April of 1948. No additional information appeared in the Chronicle Star about Runnel-Wiggins.
Later that year, in December of 1948, Coast Cities Motor Sales announced its status as a new jeep dealer in Pascagoula and began advertising in the Chronicle Star.
Below are some Runnels-Wiggins ads:
November 14, 1947 The Farm Vehicle That Works 12 Months a Year:
February 06, 1948 Get the Facts and You’ll Get a ‘Jeep’:
February 13, 1948 Winter Chores are Easier with the Universal ‘Jeep’:
1967 Ramsey Winch and PTO Brochure
January 1958 Willys Salespower
This issue of the Willys Salespower notes multiple fleet sales citing specific vehicles to specific clients.































