I like the story behind a deck, and I wrote about the history of this deck yesterday but it disappeared. I'll give you the short version.
I got this deck from my mother-in-law. She had gotten it from an older relative when she was about ten years old. This was in the thirties, my mother-in-law is 86 now. The older relative had a lot of games and stuff that she let my mother-in-law play with. My mother-in-law said that she could play with everything except this deck, it was being stored in a glass cabinet, not to be touched. She recalls, she used to look into the cabinet with her nose pressed against the glass.
When she got it she did what kids usually does when they get someting, she used it and showed her friends so it is not in great condition now, nevertheless it is a nice deck to have.
When I asked about the history, she said that the older relatives father or uncle was a store owner travelling around Europe, buying things to sell in the store, from about 1880 and up till World War One begun. Probably he brought it home from one of his travels.

The deck:
It has all 52 cards and no indices, apart from handdrawn numbers on the higher number cards.
The box is in pretty bad condition and I don't know what to do about it, so any advice on that is greatly appreciated.
Some of the cards have creases and some of the paint on the nine of hearts is gone.
I think it is from sometime in the beginning of 1900. I base this on the lack of jokers and indices, and that Dondorf changed its name to Dondorf GmbH 1906. The faces are the same as the "Baronesse Whist no.160".

A dainty deck of a size that would fit nicely into a lady's [baroness'] hand!! You are I think pretty accurate in the dating - before 1906 and likely after 1900. Issued without a Joker and that style box indicative of 1900 period. Thanks for the neat story. Condition doesn't matter much when there's nostalgia involved.

This is not one of Dondorf's scarcer decks. I'd say $60-75 mint and $25-40 in that condition.