On offer is an original blueprint for the Bristol Belvidere helicopter.

This blueprint is from the first Belvidere prototype, before it’s got its name. Its original name was ‘Air Minstry Type 191’.

The Type 191 was a failure and it was redesigned as the Bristol Belvidere.

This is a highly detailed and technical blueprint that shows the nose of the aircraft, the cockpit canopy.

Folded. Roughly 130 x 76 cm. With creases throughout and some tears also some handwritten notes by the designers.