Okay, that checks out with your description Ed.
The card to the left of the interrupter is labelled "8C I/C Cont" which according to my book is the "dial I/C control." The card in the lower left hand slot (green unit, picture 4), is labelled "4131 L1" which is the "dial I/C line sel"??
The rack is a hinged unit (yes, loaded full of 66 blocks behind it) and it has two sub frame units which have 7 slots each. So my question is, why did they call this a 13 slot when it has 14 slots with both sub frames?
