a bit more info
Coronet is a
folding bed or self-erecting
120 film camera series, manufactured by
Coronet Camera Co., Birmingham, UK and produced between 1920s-1940s.
Coronet Camera Co. linked up with
Tiranty of Paris after WW2 to produce cameras and avoid French import restrictions. These cameras were usualy have "Made in France" stamping and French instructions on controls.
Coronet folding 120 film cameras have several variations in body style and lens equipment were sold under this general name in Coronet's catalogs. Normally they have no model identification on the camera itself. Meniscus models are typically not self-erecting. Self-erecting style available with Achromatic f/7.7 or f/6.3 lens. The coloured models are more expensive in the collectors world nowadays.
[1]click on the blue printing for more info