1973 8¢ Conveyor Belt Mint Single

United States #1501 8¢ Electronics Mint Single

United States #1475 8¢ Love Mint Single

United States #1495 8¢ Machine Sorting Mint Single

United States #1498 8¢ Rural Delivery Mint Single

United States #1492 8¢ Sacking Parcels Mint Single

United States #1489 8¢ Window Clerk Mint Single

United States #1493 8¢ Mail Cancelling Mint Single

United States #1490 8¢ Mail Pickup Mint Single

United States #1477 8¢ Posting Broadside Mint Single