This 1948 Oldsmobile post card shows a 1948 Oldsmobile 4dr sedan. It reads on back:

BEURMANN MARSHALL
LANSING MICH.

1946 Oldsmobile Post Card

A very early post card, issued after World War 2. This 1946 Oldsmobile Post Card reads on the back:

KAPKE NASH
411 S.Fond du Lac Ave.
Menomonee Falls, Wis.
Phone 2560