Egg scissors

I know what these are but can anyone identify where and when they were made? The mark may be a well rubbed down crown and the letters seem to be NOXI but the end tails off over the edge of the hinge.

Any help welcome!
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Your picture of the mark is upside-down.
That’s a silverplate mark used by James Dixon & Sons, Sheffield, England…

Dixon of course ! Thanks. Any idea of when they were made?

You’re welcome.
The “Made in England” stamp appears on items made since c.1920.
Don’t know how long James Dixon & Sons produced silverplate.