So one suspects this is self  explanatory. 8th scale, patterned after the Comet model but scratch built from fiber board, plaster, polymer clay, found objects, polyurethane glue, aluminum etc, etc, etc. Reasonably effective. Building the base is surprisingly easy if you copy the dimensions from the kit slats, the worst part was casting all the hemispheres, definitely convinced me that if I was ever crazy enough to undertake a full size one the only way to go is vacuum form, preferably in  plastic of the final color.