Monumental More Than 2 Foot Long Tridacna Gigas Giant Half ClamshellSarasota Estate Auction4.7(640)$200(1 bid)Apr 19, 2026
Large Clam Shell (Tridacna-Geigas) with Collection of Seashells, 8"h x 20"w x 12"dBill Hood & Sons Art & Antique Auctions4.6(758)$300(3 bids)Apr 21, 2026
Highly Ruffled Tridacna Gigas Giant Half Clamshell SpecimenSarasota Estate Auction4.7(640)$80Apr 19, 2026
