I never thought about forgeries. Someone took the time to hinge these stamps though. (See photos).
And they were in a glassine envelope with a bunch of other Albanian stamps from 1927 and 1938 (see eBay
But I was looking at Stamp Collectors World web-site and noted the following:
With very few exceptions, most of the stamps described on this page are VERY EXPENSIVE, and EXCELLENT FORGERIES exist for ALL of them! Extreme caution should be exercised, when purchasing any of these early hand-stamp-overprinted Albania stamps. It is recommended that only examples that are properly authenticated or certified should be purchased!