Davis sewing machine:

http://needlebar.org/nbwiki/index.php?title=The_Davis_Vertical_Feed_machine_(1882)

If any additional testimony of the excellent qualities of the "Davis" machine were needed, we should have great pleasure in adding that after careful examination and testing, we find this machine is splendidly made, is constructed of the best materials, is excellently finished, and will stitch all classes of work, heavy or light, so beautifully as to be almost astonishing.

http://www.grandmotherssewingmachine.com/davis-vertical-feed-treadle.html

http://www.ismacs.net/davis/davis_walking_foot_machine.html

1893: The Davis Sewing Machine Company was incorporated in 1866, the factory was at first located at Watertown, NY, where it remained until 1889, when a new factory was erected at Dayton, and the company reorganized; capital stock, $600,000. The plant covers seven acres. The machine shop is three stories in height, brick, 42x510 feet, with an L of same height, 52x175 feet; the foundry, brick one story, 72x200 feet, and the blacksmith shop, also brick, one-story, is 35x72 feet.

Great pains are taken in the selection of workmen, of whom 400 are employed, nearly all of whom are expert mechanics. One hundred and fifty machines are the average daily output.

They are made in several styles and sizes suitable for work in every description of material, from the daintiest lace to the thickest sole leather. The Davis machine is in constantly increasing favor all over the world, and branch offices are maintained in all the principal American and foreign cities, as Chicago, Boston, London, Brussels, Milan etc.

The Davis Sewing Machine Company made foreign trade no small part of their extensive business, pushing their specialties into the European and South American countries.