The camera, however, was shown only in prototype form and without a firm date as to when it will appear on store shelves.

Dukes of Hazzard was not released and only exists in prototype form.

It was the first appearance of Speedy Gonzales, in a prototype form.

There were plans to add video-disks which at the time, in prototype form, were 12 inches.

So the technology probably existed, albeit in prototype form.

The game only exists in prototype form and was never released.

It was only built in prototype form, and cancelled after Joseph Stalin's death.

Only one of the cars, the Mamba, exists even in prototype form.

It's a wonderful way of convincing myself that we ought to put it into proper prototype form.

There was never a Volume Two in either completed or prototype form.