All 24 rounds (13 mm) are unmarked with the 4-vent breech arrangement and the "wadcutter" profile shallow pointed tip arrangement. The box is marked "Gyro-Jet/ROCKET STOCK NO. 1501" and includes a loose note from MB Associates regarding the wadcutter design.

Very good. The box has staining and discoloration, and clear markings. The individual rounds have some oxidation.