U.S.L.S.S

Brand2
Brand3

The brand is cold stamped, in capital letters, with periods following the first four letters–but not the final letter.  The brand is  ½ inch high and 3 ½ inches long. 
The brand stands for the United States Life Saving Service, which later became the
 United States Coast Guard.

This brand has been identified on the following decoys:
   Maker                      Specie               Drake or Hen                                                               
1. Henry Grant                   Brant                                
2
3.

References/Sources:
Brand Book by Woollens
Initial Contributor: Nancy & Rick Fitch
Additional Contributors: