I bought one of this seller’s Morrison brochure. It’s in very good condition. It is unclear how many of these he has. I suspect it’s from the late 1940s, given it only features CJ-2As.

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“You are buying or bidding on a rare vintage early 1950’s “The Morrison-Built Rogers Sno-Dozer For Jeeps” brochure. This was originally sold as a plow and scraper and was from the late 40’s. They were later produced by the Morrison Railway Supply Corp. Buffalo, New York. This is 5 1/2″ x 8 1/2″ opens twice to a 11″ x 8 1/2″. This is in excellent condition.(see pics)”