EPPING, N.H. – A 19th-century document referencing Elias Howe Jr.’s patent for the first modern sewing machine sold for more than 100 times its estimate at Devin Moisan Auctioneers, Inc. on July 15-16. Estimated at just $100-$150, the folded and torn manuscript agreement between Howe and school friend George Fisher brought $12,500. Absentee and Internet live bidding was facilitated through LiveAuctioneers.