The two appear to be leaning against the wall at roughly the same angle to the camera so the ratio of the scale lengths will be approximately the ratio of the lengths in the photos. On my monitor I measure 83 and 107 mm from nut to the center of the bridge so the larger one is 107/83 or 1.29 times larger than the normal bass. If you multiply 34 by 1.29 you get real close to 44. Close enough for government work....
Ken