I logged into their website, and didn't see a single bicycle...

Ahhh... never mind, there are two websites.

https://georgenaterry.com/ This is their bicycle branch... In particular their large rear/small front wheel bicycles.

http://www.terrybicycles.com/ Only accessories, no bicycles.

Odd that they don't seem to have links between the two sites.

Occasionally used Terry bicycles show up on the web, or various competitors that made similar large/small wheel bikes back in the 70's or 80's.