Small tag from N.N. Hill Brass Co (manufacture of bells, toys, and light brass goods).  The tag is franked with a 5¢ Lincoln paying 5 times the 1¢/oz fourth class samples/merchandise rate.  Unfortunately, the tag arrived at its destination but the merchandise didn't.  Hand stamp reads "received without contents, New York P.  O.  , Inquiry Dept Aug 4, 1906".