Looking for super miniature double blade, not the average.

[brexys]

I have only seen this knife once in person in my life, at an antique firearms show. I have searched nonstop since, to no avail.
It was priced ridiculously. I collect minis... (vintage, pre WWII) and really should have gotten it.
I have only been able to find this picture, but it was posted 4 years ago.
This picture is from someone in Australia. The one I saw was in the USA.
And yes, it is working!
If anyone has any information about it, go for it.
There was nothing on the blade, no markings, and there were no close up pictures.
Best of luck, and thank you for your time.

-B.

[Miller Bro's]

How long is it closed?

M.B.

[brexys]

It's probably a little less than a centimeter...? It's really tiny!