Greyscale
Veteran

What did I buy? by Greyscale3, on Flickr

What did I buy? by Greyscale3, on Flickr
What did I buy at a thrift store this afternoon?
Small German viewfinder folder, Schnieder Krueznach Radionar 1:2,9/75, Prontor II shutter. Sticker inside says "Made in Germany USA Zone". Manufacturer's mark is a stylized trefoil with the letters "A G C". Any ideas?
Aside from the peeling leather and sticky slow shutter speeds, it looks to be in pretty decent condition, but I could use some help identifying it.
ETA I found the initials "FW" on a small steel plate beneath the lens. Franka Werk?