Dutch Pocket watch key ?

[tu-fan]

Hello, here i got a dutch watch key.

But what is this for?

[oel]

Hi tu-fan,

AB (monogram) 99 is the maker's mark for; Arie de Bruijn, registered in the city of Schoonhoven from 1852/ 1887 and with this particular mark in a rectangle from 1860/1887.


Peter.

[tu-fan]

thank you very much! That fits.