I have about 300 battery ads and about 50 of them are from Exide. None of them show the stand above. The earliest ad showing the "When it's an Exide you start." is from 1933, the last one is from 1957. If I were to guess I would say it is from the 1950s. Also found a Exide ad for a battery that would look great on your stand, hope you can find one.
Jack Sim