Currently, the largest known number of the 17¢ sheet stamp on cover, parcel piece, or tag is: 5.

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Description: 5 of the 17¢ Prexie paying the 40¢ international registration fee and 45¢ rate for a triple weight air mail letter mailed to Builth Wales, Great Britain on January 6, 1953.

Owner/Source: eBay listing that sold on April 25, 2023 for $64.

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