The above stamps have blue sky and perfs 13.3 x 13
The top stamp has a straight edge and seems to fit the description of Unitrade number 925asi
The second stamp is from a pane corner, perforated all around. According to my understanding of Unitrade description and footnote, the blue sky stamps appear to be only from booklet panes of 25. All pane corners should therefore have one straight edge.
Were the blue sky stamps issued also in panes of 100? If so, who was the printer and where does it fit in Unitrade?
Any assistance to correctly identify the bottom stamp would be appreciated.
Posted 03/02/2011 4:41 pm
