Probably is in fact S&E Mfg Co, Bridgeport, they made hand tools and padlocks(lots of them), sewing machines...(with button hole attachments)...
(Smith & Egge Bridgeport, CT)
S&E 1874
S&EM 1877-?
[for some odd reason, datamp has them as S&E and elsewhere as Smith & Egge]