Chickering 123 Music Desk Hinges

[DKnabe]

I'm looking for a set of original music desk hinges for a 1911 
Chickering 123. I lost a set after sending the piano to the refinisher 
and unfortunately, I don't remember the details of the hinges. It seems 
that they had 2 or 3 folding parts on each side.

Does anyone have  an original set that they would be willing to part 
with? If not, then just a picture or diagram on how they looked/worked 
would be great.

Thanks in advance.

Doug Knabe
Dallas