Here is a little information that I found on the Thomas Page of TheatreOrgans.com.
The pedalboard in your photo is definitely flat. Thus, it would be a Celebrity since the other 32-note models were to AGO specifications.A unique feature of the Thomas spinets was their 13-note pedalboard, which was arced inward to simulate console pedals. They were too small for heel and toe playing and they were only one octave. The Concert Serenade and the Lawrence Welk had two 44-note manuals and 25 short pedals. The VL-5 had the same spinet manuals with a 25-note pedalboard that went under the bench as a console does. The Model 800 Celebrity had two 61-note manuals and a 32-note, flat “Princess (narrow)” pedalboard, but that was later revised to a standard 25-note pedalboard. Their only other 32-note pedalboard organs were the Impresario theatre model, the Model 710 church organ and the Model 900 Palace three-manual theatre organ. These three organs had pedalboards that conformed to A.G.O. specifications.
As for a stoplist, I don't know if one is available. However, I have played a Celebrity (don't know which model since there were several models named "Celebrity") with a 25-note pedalboard. I can tell from your photo that the stops are at least in a different order than the one that I played.
It has been at least 4 years since I played the Celebrity. I will give you the stoplist as I recall it. (I may not remember everything correctly.) It may not be the same as the one in your photo.
Solo: Tibias 16', 8', 5 1/3', 4', 2 2/3', 2', 1 3/5', 1 1/3', 1', Kinura 16', Tuba 16', Saxophone 16', Trumpet 8', Oboe 8', Clarinet 8', Diapason 8', Vox Humana 8', Violin 8', Violina 4'.
Accompaniment: Flutes 8', 4', 2', Diapason 8, Cello 8', Cello 4', Horn 8', Vox Mystica 8'.
Pedal: Contra-Bassoon 16', Bourdon 16', Diaphone 16', Bass Clarinet (don't recall footage), Flute 8', Flute 4', String Bass 8'. (I think there were some more pedal stops but cannot recall them.)
There were also two "percussion" stops: Hawaiian Guitar and Harpsichord. These had blue tabs. I don't see any blue tabs on the instrument in your photo. So, these would probably not be present.
I hope this helps a little.