I find the same thing here Bill. I actually had a seller want to argue that it was old damage, he had a fresh coat of paint on the outside of the building and he knew there was no way water was coming through it, which was quickly and easily dispelled with the shot of a thermal camera backed up with a moisture meter.Nice photos Peter! You definitely got me beat!
I find many clients (and often many contractors) have a hard time comprehending moisture concerns in block walls for some reason. I guess they feel it is impervious...