Featured Dutch maker's mark on silver brooch. Help please.

I love this Dutch Biedermeier brooch. It couldn't be more Dutch if it tried.
It has the 1814-1905 sword mark for .833 silver and is set with a giant moonstone. I thought it looked like chalcedony, but the seller said moonstone and he was right, it tests like moonstone.
The safety chain is a later addition, it is marked with a weight mark introduced in 1906.
The brooch measures 6.1cm x 4.1cm, 2 13/32" x 1 39/64".

My question is about the maker's mark.
It is a 2 letter 2 digit mark, which is usual for a 19th century Dutch maker's mark. However, I can't read it very well, and I can't find a mark that resembles what I see. What I read is VC.7(?). I can't find it, I have looked at other V marks as well.

So please, all you silver mavens and wonderful searchers, can you help me?

Thank you for looking.

 

Yes, that's the one. I tried to make the mark look better, but no luck. It is old and tired.

 

Hi @Any Jewelry....that mark almost makes me wonder if it's supposed to be a "conjoined VK 71"......JUST a guess!!!! And YES the brooch is GORGEOUS!!!!

 

And is that another mark in the upper corner???

 

Hi Aqui. It could be, but I can't find that maker either.

That is the pad for the safety chain. No marks on that.

 

Thank you sweetie.

 

It is weird but I don't see 71. It looks like an old H. As you are sure that it suppose to have 2 letters and 2 digits, I will try to find the mark.

 

Thanks Anouchka, it could be WH. Unfortunately I can't find a silversmith WH either.

 

Glorious! I would have swear it was a white chalcedony!
For the mark, I noticed it becomes easier to read when repeatably and quickly blinking at them!
This trick gives me W.K... What result do you have?

 

Sorry, AJ - lovely piece, but no idea on the maker...

~Cheryl

 

Thanks kyra.

My thoughts exactly, but the test showed the seller was right.

After some quick blinking I read VCH. Can't find a maker WK or VCH.

 

Far be it for me to stick my nose where it doesn't belong. But I thought this site's marks were very readable because they're black and white renderings. Just in case this isn't in your arsenal of research sites:

Lang Antique Jewelry Netherlands ------>

 

Thanks for looking anyway, Cheryl.

 

Thanks sabre, I'll take a look later, it is dinnertime here now.

 

Ooh, that's clever!. I like that.
No idea on the mark I'm afraid as I'm clueless but it's very lovely

 

Would the other way up offer anything to think about???

 

Does the stone have schiller or adularescence? If not it's plain old white feldspar.