My thanks go to Nick Lowings for these photographs of his Grinnall Scorpion. Nick writes:
.. I own the first Grinnall Scorpion 3 ever built, chassis 0001, and I have a long term interest in beautiful and innovative design on 2,3 or even 4 wheels.
Photo 1:In the Sahara Desert
Photo 2:In Tripoli
Photo 3:At Gabes Oasis
Photo 4:Next to Mediteranean sea