1931 Walter Hinton Event Cover from Portland Oregon W/C11 Stamp

Description

Here is a Very Nice Aviation Event Cover postmarked on May 4
th
1931 at Portland Oregon with cachet reading Portland Exchange Welcomes Lieutenant Walter Hinton”
This has been franked with the C11 Airmail Stamp
This has been neatly opened at the left side
HAVE FUN COLLECTING *********
THANKS FOR LOOKING
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