On Ebay currently( 13th Oct 2014) is a Baritone/Treble Aeola with wooden ends, from 1922 , needing some tender care but appears to be in otherwise good condition.
Looks to me like a replacement 8 fold Bellows by Crabb with a case to match.
I have one so I'm not bidding but want to alert others to the possibillity of aquiring one of these .
Play it like a treble EC with the option of decending a further octave below which is great for harmonising whilst playing the melody at the same time in a 'normal' position..... The 56key version is the smallest Baritone /Treble at just 8" across and thus the most easily managed, just does not have the highest half octave of the Treble range.
Good hunting.
Geoff.