UNUSUAL "CLAMSHELL" CASE. Early “Clamshell” Waterproof Case Design with 4 Screws That Secure the Two Piece Case Top to Back. Fixed Lugs.

UNUSUAL "CLAMSHELL" CASE. Early “Clamshell” Waterproof Case Design with 4 Screws That Secure the Two Piece Case Top to Back. Fixed Lugs.