Weilburg Germany
This six story load bearing rammed-earth structure at Weilburg, F.G.R. was constructed in 1826.
It is believed that the wall starts at 750mm thick at the base and reduces by 90mm each floor up. i.e. ground floor is 750mm, first floor is 660mm and so on until fifth floor is 300mm.
Photo from CSIRO Bulletin 5
Earth Wall Construction
PO Box 310,  North Ryde  NSW  2113,  Australia

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