This is really a plastic snap together kit made by Reuhl Products Inc. in 1948. I found it in pieces at an estate sale. The only pieces missing were the shift lever and part of the exhaust pipe. The front axle was broken. I glued the axle back together and added a piece of aluminum tube for the exhaust. The aluminum tube was not painted because the original kit had the piece in aluminum color.
Reuhl marketed a very detailed and fragile Farmall Cub when the real one was introduced in 1948. Design Fabricators and Saunders also marketed the Cub so you will find them in several forms of packaging. The Cub was a model and not a toy as it couldn't withstand the rigors of young farmers. Cubs came assembled or in kit form. Because they were so fragile, few survive today. Major variations of the Cub are with smooth or lug rear tires. No parts are available to repair Cubs so you have to use broken ones to salvage parts..