Help with mystery marks

Greetings – first-time poster here, and hoping for some help identifying these marks on the bottom of a silver box. I assume it’s British because of the crowns, but of course have no way of being certain. Thanks for any and all guidance.

It’s Wolf & Knell of Hanau (Germany).

Phil

Thanks so much, Phil! Super helpful.

Since I’m utterly new to all this, is there a way to tell from these marks – or from any other resources you might point me to – how old the piece is?

Wolf & Knell were in business 1887 to 1914. See this site and scroll down to find the relevant entry.