We have located only one other manual in the Computer History Museum (CHM) at Mountain View, California. It is listed as in their collection but the manual itself is not shown. We are guessing there are a few others around...but we haven't found them.
For more information, click on the link(s) below. CHM Compter II manual
If you know the location of any other of these, please let us know by contacting us at info@EarlyComputers.com.