"Period correct" would be Goodyear Blue Dots, but they aren't around anymore.
As neat as the large lettered Goodyears look, you may want to think twice about mounting a set if you are doing any appreciable driving. They have a tendency to "hunt", wear quickly, and pick up stones and other debris, and mimic a sandblaster with the leading edge of your rear fenders.
For trailer queens, show cars or those seldom driven...none better for the "effect". But for road use, there are DOT approved products available that while not "original", get pretty close, and are a much better alternative.
Bud
