Mamselle Seahorse Pin Crab Starfish Shell Lot Brooches

Nice lot of 4 ocean creatures - the sea horse is the gem - a minty brushed gold plate. That one measures 1-3/4" tall. It has a small pearl in the tail - this company I believe was dissolved in the 80's. 2nd - A large gold plated double starfish pin that measures 2" across. 3rd small silver plated mussel that measures 1-1/8" long and finally a large gold plated pearl body crab.  That one measures just a tad under 2" across.  4 pins - none of them ever worn - mint condition.