I will scan the following three first as they describe XXDP *itself* : - AC-F053B-MC CXQUAB0 DECX11 USER'S MANUAL - AC-F055C-MC CXQUBC0 DEC/X11 CROSS-REFERENCE MANUAL - both of these are already on line at www.bitsavers.org/pdf/dec/pdp11/XXDP