110B front standard is designed for Ysarex 4.7/127mm lens only, it is tiny and lightweight, equipped with a powerful spring, it stands rigid when bellows pulled out for snaps, and fold flat while bellows pushed back and door closed.
I emphasize "rigid" because that depends, if the lens is a lightweight one, like Ysarex 4.7/127, Angulon 6.8/90, Symmar-S 5.6/100, Apo-Symmar 5.6/150, or Apo Ronar 9/150, weighted around 200g, that spring standard is "rigid".
But when 110B converted from a fixed lens into a lens interchangeable camera, it is possible for user to mount a much heavier lens on it, will the spring front standard hold it well?
This is the original front standard
When you finished snaps, want to fold up the camera, pull the clip up, it will hide under the shutter nicely, wouldn't bother any operation and storage.