IC 3970 is probably the star near Wolf's position. However, that position is far enough off the star toward another one to the west, that I wonder if it applies to both stars. If so, then Wolf's position angle is close to being correct, too. But then, Wolf's "* 15 att p" is lost. So, I favor the single star explanation. At least one object is marked on a print of the original Bruce 16-inch refractor plate which Wolf examined, but the print is not clear enough to show the two stars separately, or any defects that might be involved.