This is similar to the Ica Ideal and the Goerz Tenax folding plate cameras that were made around 1920. The Ica would have the 5-pointed star and the Goerz would have the stylised 'CPG' logo.
The logo on the shutter speed dial can be seen on the same Compur shutter which is fitted to many Contessa-Nettel cameras from the same era.
Contessa-Nettel was formed in 1919. Later on (1926), they merged with Ica, Goerz and Ernemann to form Zeiss Ikon.
The serial number on the shutter gives a manufacturing date between 1914 and 1920. (see http://motamedi.info/serial.htm)
A lot of the components around this time were mixed and matched and cameras made in one country were sold with a different name in another country. Often, the name or model of the camera is stamped into the leather handle, but when they're this old, you sometimes won't be able to read it!
This is probably a French-made camera as it has a Berthiot lens (same era) and obviously was sold by Parisian camera vendor Photo Plait (of 35-39 rue Lafayette, Paris-Opera).
That's what I know about 'em
PS, it's worth nothing. Send it to me