In the late 70's ferro-cement sailboats were a thing. I watched one get built at the marina where we kept our boat at the time. It's mentioned here [0], the San

In the late 70's ferro-cement sailboats were a thing. I watched one get built at the marina where we kept our boat at the time. It's mentioned here [0], the Sandpiper. [0] https://books.google.com/books?id=COilQT7iWTgC&pg=PP436&lpg=PP436&dq=sandpiper+ferro+cement+sailboat&source=bl&ots=f2NRj4-zve&sig=ACfU3U2-pn-mCrPlhZU96EmKJsaUsdAWrA&hl=en&sa=X&ved=2ahUKEwjes4bBtfL5AhWLnWoFHefeDA0Q6AF6BAgpEAM#v=onepage&q=sandpiper%20ferro%20cement%20sailboat%20walmart&f=false https://books.google.com/books?id=COilQT7iWTgC&pg=PP436&lpg=...