Ertl 1:43 scale F515 Railway Express Agency step side delivery van.
This late model stepside van is typical of mid 1960s stepside vans used by delivery companies. It could be used on an O scale model railroad scene. Although the REA logos on the van are early versions it could pass for a mid 60s REA vehicle. According to WIKI the Railway Express Company was renamed as REA Express in the 60s.
Some photos of prototype 1960s stepside vans shown.