Vintage US Air Mail poster "Think Big" 1983

This unique set of two 1983 signed pieces US Air Mail are in good condition. This set comes in a simple white frame that shows the ‘stamp’ figure best in the way that it is ment to be looked like a lop-sided tattered stamp. There is a perspex transparent protection in front off the objects, protects max but shows on the pictures some dull reflexion. Signed in the left under corner.