Large Claim Shell, Abalone, Unknown & Sea Urchin, Nice Set

Description

I've had these four shells for over 25 years and its time to pass them on.  The Claim Shell is 10" in width.  The bottom is shaved to insure it sits flat on the table at all times.  The Abalone is nearly 8" across.  The third shell, which has a luster to it, is unknown to me.  The Sea Urchin or sand dollar is fossilized.  I use an old thumb drive to upload pictures, which is predated, so please ignore the date on the photo's.