The result is a note with part of the seal and serial numbers printed on top of the sticker.
In the paper money hobby, this error type is called a "retained obstruction."
The vast majority of such errors do not retain the source of the obstruction but those that do sell for a substantial premium.
[1][2] The Del Monte Note originated at the Fort Worth U.S. Treasury Department print facility.
The note had been preserved in uncirculated condition and was auctioned off on eBay for US$10,100 in 2003.