Small-Window in a '68? Harry Bradley's first design?

[John Gilbert]

Boy, Jim Aust's writings on the '67-72 C10 is going to be a tough act to follow. I do believe I've identified a niche that Custom Classic Trucks' readers will relate to, so this won't be a complete rehash of what's already been written.

Anyway, does anyone know if any Small-Window '68s were produced, or were Small-Windows built in the first half of '67, and then the second half introduced the Panaramic rear window. The build sheet on my '68 GMC, built in Sept 67 has a box for the Panaramic rear window, indicating it might have been treated as an option? Similar to big and smalls were treated '60-66 and 2nd '55-59.

Also was the '67 C10 Harry Bradley's very first design project?

Thanks in advance!