GB Penny Red / Maltese Numbers 1-12

A full collection of penny red stamps with numbered maltese crosses 1-12. Each stamp is sleeved and labeled, making them ready to join any growing collection. This curated set is more than just stamps; it's a window into the past, preserving history one piece at a time. 

The numbered Maltese Crosses on Penny Red stamps were used to monitor the work of postal sorters at the London Head Office, with each number signifying a specific sorter or station, allowing for quality control and identification of potential errors in mail sorting; essentially, the numbers helped track which sorter had handled a particular piece of mail.