In 1857 he constructed an improved version of his earlier prototype.

The eye was a early prototype for the power rings.

The color on the early prototypes, he said, was mostly washed out.

The Police car is in evidence and very much redeveloped from its early prototype.

An early prototype, with older character designs, was leaked in November 2008.

Development began in 2005, and an early prototype was demonstrated in 2007.

An early prototype would be built to a much smaller scale.

I have lost my father, the man who created me, and my brother, an earlier prototype.

The next stage forward is for early prototypes to be produced.

The current version, which is far more durable than the earlier prototype, was released in 1997.