#PinnaNobilis, the #clam from which #SeaSilk is produced, grows up to a yard in length.
https://www.atlasobscura.com/articles/sea-silk-rarest-thread-italy-clams-textiles-fabric?mc_cid=816b85d78f&mc_eid=2bcafc77e8
#pinnanobilis #clam #seasilk