OK, as discussed in a recent thread, Scott's does not give as much help as we all desire. In this case, there is a somewhat helpful note, "Used Values of 1920-23 are for Favor-Canceled stamps, unless otherwise noted. Postally used examples bring much higher prices."
Here is a snapshot from my page with 3 examples that I consider postally used, but I am now not quite so sure of the 4M stamp. I've seen plenty of CTO, but maybe German favor canceled stamps are more authentic. Scott's price difference is significant ($6.00 versus $37.50). Any comments?
