Yes, these are the infamous MP&CO. These were first issued in '43 and then again in '49. This is a combination since the Mize and some others, were only printed in '43 but obviously the Berra and some other could not have been. Even so, you can always tell by the printing style on the backs. Even for MP uglies, you have to admit these go a step beyond. You'd need 3D glasses to look at the Mize.
I got them all in a clump in the late '60s but I have to say they are no more uglier now than then
