Vintage Graflex R.B. Series D SLR Camera 3 x 4 (Rotating Back) 1927-1948 ?

Description

We offer for your consideration this vintage Graflex SLR Camera.
This is a vintage Graflex R.B. Series D  Single Reflex Camera. (R.B.- Rotating Back)
We could not pinpoint the date of manufacture, but these cameras were produced from 1927 to 1948.
The serial number on this camera is 240346.
Please check out the pictures for an overall idea of the condition of this camera.
We are not a camera shop, we are not camera experts. I watched a few youtube videos to see how this camera operates. The buttons and the triggers all seem to work. The butterfly knob is a little stiff, so it may need to be looked at and serviced. But you can hear the shutter curtain actuating as it should.
The back has a "Graflex Film Pack Adaptor" mounted to it. It looks like  3 x 4 format.
Known Issues: The lens hood has tears along the seams on each side. The sliding panel in the back is dry and brittle and it has a chipped corner, but it still cover the film image area.(See Pictures)
Whether you are a collector who will display this camera in a collection, or a photographer who enjoys using a camera that you have serviced, or repaired yourself. This old camera is a fine example of American camera development and technology