those are the original sizes. Unless you need to win Concours, you need to consider other sizes.
For the "correct sizes", you can go to Coker Tire (
Coker Tire - Buy Vintage Tires and Wheels) and watch your wallet drain down. The Vredstein and Michelin are in the correct sizes and tread patterns.
If you want to just drive around, try a 195/65-15 tire. While "ultimate" performance tires are no longer available in these sizes, for street use, there are some good selections. Check Tire Rack for some choices.