This is U.S. Scott #3228, the 10 cent Bicycle Stamp, USED PS1 with Plate #221.  This is the rarer type with SQUARE SHOULDER die cuts.  This copy is USED and the centering is VERY FINE (VF).   (See the scan for precise centering.)  It's a solid copy with no issues that I can detect.   This one catalogs for $8.75 in the latest PNC3 Values List of Plate Number Coils.   It's much rarer than the round shoulder type.

The stamp pictured is the actual stamp I will ship.  I do not substitute copies.

Bid with confidence.   Member APS and PNC3.