The Twenty-five-cent Prexie

Multiple rates

This cover was sent airmail, insured on May 11, 1948. It was also marked parcel post, but there were no special parcel post airmail rates until September 1 of that year.

There is no way to tell whether the item was sent at twice the five cent per ounce airmail rate plus fifteen cents for insurance from $25.01 to $50, or three times the airmail rate plus ten cents for insurance from $5.01 to $25.00.

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