I don't usually spend a lot of time on post 1940 stamps.
But this one to me is confusing.
Unitrade said it is printed in booklets only...And is classified as BK171.
Below is the booklet BK171...10 stamps with writing at the bottom.
Now my block has NO writing at the bottom...see below
1 -Did they print 2 different booklets...??
2 -Or did they also print sheets...??
Help needed just in case I am missing something