please help!!! i know nothing about seashells

[chastidyllaws]

PLEASE HELP ME WITH THESE SHELLS ALSO I WOULD LIKE TO KNOW WHERE THEY ARE FROM WHAT FAMILY THEY BELONG TO AND THE VALUE TO A COLLECTOR IF ANY?? ALSO WHAT DOES F1 F+11 MEAN AND IF I WANTED TO START COLLECTING SHELLS WHAT IS THE BEST WAY TO DISPLAY OR PROTECT THE ONES THAT I HAVE THAT MAY BE OF SOME VALUE.  THANK YOU<a href="http://www.badongo.com/pic/1365200" target="_blank"><!-- m --><a class="postlink" href="http://www.badongo.com/pic/1365200">http://www.badongo.com/pic/1365200</a><!-- m --></a> <a href="http://www.badongo.com/pic/1365246" target="_blank"><!-- m --><a class="postlink" href="http://www.badongo.com/pic/1365246">http://www.badongo.com/pic/1365246</a><!-- m --></a>