Antique Desk Set by Bronze Sculptor Hans Muller

Hello. I am hoping to find info on this rare turn of the century desk set by Hungarian bronze sculptor Hans Muller. This was given to me many years ago by my grandmothers best friend. It was her fathers whom was from Germany. It is in excellent condition ( I think so ) I have other pictures that show the original glass in the ink wells, they have never had ink in them. The parchment paper on the blotter is intact and in good condition. I forgot to include a picture of the letter opener.

Looking for as much information as possible and its value. I am interested in possibly selling as I do not have the proper desk style to feature or really use it. Thank you in advance for any help.

Cheers,

Carrie Lindley