Date of manufacture is determined from source material at http://homepages.ed.ac.uk/am/gdsl.html (archived HERE)

The Selmer-made Adolphe Sax horns are now in the Selmer gallery. You should give that a look, as some of the Selmer "Gen 1" horns are made from original AE Sax parts.
1st Gen
1st Gen
51 Rue Blanche
Double Octave Keys; No Rollers
20 photos in 4 sub-albums
2nd Gen
2nd Gen
84 Rue Myrha
93 photos in 11 sub-albums
3rd Gen
3rd Gen
"Curved" Wire Keyguards
"Y" Shaped Octave Mechanism
Buescher-like G#/C#/B/Bb Cluster
182 photos in 21 sub-albums
4th Gen
4th Gen
Redesigned, simpler octave key mechanism
Redesigned, more complex G#/C#/B/Bb cluster
s/n 14823 C melody tenor at MIMO

117 photos in 12 sub-albums
5th Gen
5th Gen
"Straight" Wire Keyguards
55 photos in 5 sub-albums
Bb Tenor Mouthpiece
Bb Tenor Mouthpiece
From jazz123john on ebay
6 photos
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You might notice that I'm posting a few horns in here that are actively for sale.
I'm doing that for a few folks that have been long-time contributors here.
The standard disclaimer applies: they're not my horns, I don't claim they're good or they're in perfect shape, etc.

If you want to list your horn, e-mail me at thesaxinfo-at-gmail.com and we might be able to work something out.