Currently, the largest known number of the 16¢ sheet stamp on cover, parcel piece, or tag is: 4.

​

Description: Registered parcel tag from Vermont Savings Bank in Brattleboro, Vermont to their office in Jamaica, Vermont. Tag also contains four of the 19¢ Prexie and four of the 1¢ Four Freedoms issue, for a total franking of $1.44.

Owner/Source: Sold at auction on eBay on November 14th, 2021, along with two covers containing Prexie stamps.

Image(s):