Made by SRosato, Italy-  Beautiful 14K Yellow Gold plated .925 Sterling Silver 'letter' pendant, each with a different message, that fit into an 'envelope'.  
Letter choices: 'be my valentine', '4 ever', or 't.a.u.k.'.
Letters & envelopes measure 48 mm x 18 mm.  16 ½ inch .925 Sterling Silver chain with a large lobster clasp.   Total weight 4.40 grams.