Hi Rick,
Welcome to the forum.
This is a street series incandescent lamp and probably dates to around 1890.? This lamp is very similar, if not the same, as others that I have seen manufactured by Bernstein from the late 1880s.? In making this observation, I am looking particularly at the filament lead-in wires and the two glass "legs" that surround them which protrude from the stem.? The base is probably a mogul Thomson-Houston type.
This is a nice early collectible lamp and quite sought after among collectors.? Great find!