I always struggle with deciding where is the best place to put threads and posts like this one, so that others will be able to easily find it. If we go by the catalogue, technically, the threads in the Morocco sub-board which show overprinted stamps of Great Britain or its colonies should actually appear under GB Offices Abroad. But I totally agree with the thought that the first place I would look for stamps overprinted like the ones below, would be under Morocco, rather than Germany.
So, I have decided to start two threads: one under Germany and one under Morocco, and I will put a link in this thread to the other thread, which will have the images of the individual stamps. This way, if someone is looking to find these stamps on TSF, he/she should be able to get there by using either logic as to location.