Just found a receipt for 2 30X3 Firestone All white tires $68.00 each Total $136.00 no tax. Picked them up at Lucas Tire in Springfield Oh. 9/11/79.
in 3 more years the tires will become antiques outright.
The rear tires on my 1910 date from the mid 1950s. They are not cracked and have good tread. I also have a 30 x 3 1/2 new old stock US Rubber tire from the same time.
1950s tires are synthetic rubber and weather much better than the natural rubber tires available now. My guess is they were also a harder durometer as they seem to have worn much better also.