Anyone know of this hallmark?

[Apollo]

I hope someone can help me with this hallmark.
We have had this bracelet in my family since the 70's.
I've searched the internet, but to no luck can I find the answer. It looks like a K & J with an arrow through it.
I have attached 2 pictures and would appreciate it if someone could help me on this.



(admin edit - see Posting Requirements )

[vista]

It's almost easy to look before through several registries:

http://www.925-1000.com/Fgerman_marks_a1884_3.html" onclick="window.open(this.href);return false;

Kollmar & Jourdan AG, Pforzheim, Germany