Do these PHQ (Postal Headquarters) cards have any value? They are not in a Scott standard catalog.
I bought a collection of Great Britain awhile ago and have 2 albums of the PHQ cards that came along for the ride.
From what I 'googled' they are like the US post office maximum cards.
These PHQ cards apparently do have some value. I see them listed on some sites as high as 75 pounds each.