For you Penn historians; why the different type screws (phillips and slotted) on the side plates of the red post frame 114H models? I don't see this on the maroon ones.
(http://i738.photobucket.com/albums/xx22/wildbill2/IMG_0402.jpg) (http://s738.photobucket.com/user/wildbill2/media/IMG_0402.jpg.html)
I've had a couple with same screws and pretty certain it was during a transition time when the 113H and 114H switched over to all phillips head screws.
.....of course that is just a logical guess on my behalf. :)