Found original head brace

UPDATE,

Nigel from Hongkong has send me a picture which was published in The telegraph recently.
It shows some people posing for a picture. Nigel pointed me at the headstand they were using. Although it is not the exacty the same one as i found at Bievres it comes very close regarding the design.

Nigel, many thanks for sending me this picture !

If anyone has more info about my stand, please let me know.

From the beginning on i have been using a homemade head brace.
It was made from several parts as a cast iron table leg, microphone stand etc.

Last weekend i visited the largest open air Photographic fair at Bievres. Beside some other interesting things i was lucky to find an original head brace!
They are extremely hard to find as they have been used only for a short period (daguerreotype and ambrotype).

Most parts are made of cast iron. I will have to do a search about its original colour as now it has an ugly fade yellow, greenish colour.
Any one has suggestions about its original colour? You can turn it in several directions and even change it to stand height!
I have not been able to find a manufacturers name yet.

Can you imagine how many posers have been using this brace more than 150 years ago?