Graves & Co. was the first shop in the US to manufacture wind instruments in any quantity, starting with woodwinds in the 1820s. The successful young company built a new factory in Winchester, New Hampshire in 1830 and in 1837 hired an English brass instrument maker named James Keat. The timing was excellent because brass instruments were quickly taking a larger role in the bands and orchestras of that time. The Keat family was well established in England as makers and James was able to bring much of this knowledge and technology of brass instrument making to this new factory. There Keat built keyed bugles and some valve brasses but died in 1845. This Bb keyed bugle contains the design features of those built by Keat and was likely built very shortly after his death. This was a time that the soprano bugle in Eb was becoming the solo voice in American bands and Graves was quick to supply these. Eb keyed bugles made by Graves contemporary in Boston, E.G. Wright. Most surviving keyed bugles made in the US are Graves Eb bugles made before the shop was moved to Boston in 1850 and the earlier Bb like this one are quite rare. My replica Bb keyed bugles are copies of this instrument.
It is remarkably well preserved and some of the marks from scrapers, files and marking tools are still visible on its surface. The circular crook, bit and mouthpiece may not be original to the instrument but were found with it and likely used with it originally. It is 17 1/2" long with crook removed and the bell rim diameter measures 5 13/16".
Graves history from Robert E. Eliason, Graves & Company Musical Instrument Makers, Henry Ford Museum, 1975.