It appears this seller has separated these photos from the August 1959 Jeep convention with Castro in Cuba, listing them in multiple auctions.
“Fidel Castro Willys Jeep 1959 Convention Photos. These are from an original 1959 willys Jeep South American convention folio the year of Castros takeover. A variety of shots,including Castro Holding a Willys manual. Printed 2 sides. App. 31/2” x 5” each.Condition is “Used”. Shipped with USPS First Class”