Lumiere Anastigmat Spector F/4.5 f=80mm

[ChrisGalway]

Lumiere Anastigmat Spector F/4.5 f=80mm

Does anyone know what the design of this lens is? Is it a triplet, like the Zeiss Novar?
(It's on a stereo camera of 1939 vintage.)

Thanks, Chris

 

[ChrisGalway]

I can answer my own question! It's a triplet, see

https://oldcamera.blog/2017/08/ and the link therein http://www.collection-appareils.fr/x/html/affich_FT_eng.php?id_appareil=848