EP hallmark

Please help me to identify ep copper bowl. The hallmark resemble a hunting horn (twisted) and beside the inscription ep copper and a product number (1816) there is nothing else. No pictures again, I am sorry for this. The hallmark is very similar (almost identical) with the below image, except the straps; the hallmark has no straps.
(reed & barton maybe?)

Does it look like this?

Unfortunately, I don’t have any information for you. I’m hoping the community could help myself.
Horn Silver Mark.jpg

I have the same but no info.
See attached picture.

I don’t recognize the mark, but clearly it’s electro-plated copper. I think the number is probably a model number. I don’t know much about plated pieces, myself.