Thanks to Restaurant-ing through history (https://restaurant-ingthroughhistory.com/2012/03/11/reubens-celebrities-and-sandwiches), I have the ID for this sugar bowl:Reubens Restaurant and Delicatessen, located in New York City. It was a famous spot in the city for an outstanding deli sandwich; it may or may not have been the inspiration for the Reuben sandwich.
Distributor for the bowl was L. Barth & Son, New York. It is likely electro-plated. This little guy has been through several wars, based on condition. It has overall bumps, scratches and dents, which I actually love in these old pieces, and it has a nice gleaming patina.
The knob and hinge are firmly attached, and the lids moves up and down smoothly. There is an area of plating loss on the lid – maybe a quarter inch in size – that looks like it might have had it scraped off rather than corroded off, but I’m not certain.
The handles are firmly attached but do have deep dents and use marks, and there’s plating loss on the knobs on top of the handles. And you can see from the photo of the bottom that it was dropped and dented on one side there, too.
The 9-ounce bowl (from the backstamp) is almost 5 ½” wide, including those big ears, and stands about 4” high, including the knob on the lid.