This week, I got an email from loosescrews.com:
We have our own tire! Made by Panaracer in Japan, the 27 x 1 3/8 size also fits common 1 1/4 inch rims. They are folding touring
tires measuring 33mm wide. Light and supple, there are two distinct types, both costing a staggeringly low $31. We want to keep
classic bicycles running and the low price is our way of saying thanks. Here's a secret only for the email list here, it's the same guys
making our tires, that make the custom Panaracer tires for the high end companies that like to charge over $50 for these. Some
are approaching $80 even. That's a lot to pay for special casings when the normal Panaracer ones we use are near perfect
already. Save the money and use the wheels you already have. Great for touring, commuting, and camping. Perfect for restoring
a bike prior to sale. Just search the site for SWT of SwiftTire.