(Vintage?) Glass Bottles decorated with Native American Images

Came across these two Native American themed bottles at a local charity sale. By appearance they are "vintage", I would say 1950s or 60s. In case not evident from the photos, the bottles themselves are green glass and have some markings on the bottom - primarily numbers that are difficult to read. The bottles are covered/coated with a plastic like material upon which the images are printed using what appears to be lithography. My initial thought was modern production intended to invoke mid-century Americana but the more I study I've come to believe them to be vintage. In any case, I find them charming and would welcome opinions of viewers. Thanks