Plate Number Coils Make for a Unique Philatelic Treasure

If you’re a stamp collector with an eye for detail, you might have come across Plate Number Coils (PNCs) during your philatelic journey. These fascinating stamps offer more than just the usual thrill of collecting—they provide an intriguing glimpse into the technical side of stamp production. Let’s delve into what Plate Number Coils are, why they’re special, and how they can add value to your collection.

US #1897 – Plate Number Coil of 5

What Are Plate Number Coils?

Plate Number Coils are a type of stamp produced in rolls, or coils, for use in vending machines and large-scale mailing operations. What sets them apart from regular coil stamps is the tiny plate number printed on the stamp itself. This number indicates the printing plate used in their production, making each stamp a unique piece of postal history.

The plate numbers are typically printed in the lower corner of the stamp design, appearing at regular intervals along the roll. Depending on the issue, you might find a plate number on every 10th, 20th, or even 52nd stamp. The frequency of plate numbers varies with each series, adding an element of challenge and excitement to collecting them.

The History of Plate Number Coils

The first PNCs were introduced by the US Postal Service in 1981, though their roots trace back to earlier practices of printing plate numbers on sheets of stamps. As automation and technology advanced, the need for coil stamps increased, leading to the development of these unique stamps with visible plate numbers.

Initially, collectors showed little interest in PNCs, but as time passed, they became highly sought after due to their rarity and the added challenge of assembling complete sets from rolls.

US #2466 – Plate Number Coil of 3

Why Collect Plate Number Coils?

PNCs are more than just stamps—they’re pieces of a puzzle that tell the story of their own creation. Here’s why they might deserve a place in your collection:

  1. Scarcity and Value: Since plate numbers appear at intervals, finding certain plate numbers can be difficult. The rarer the number, the more valuable the PNC becomes.
  2. Technical Insight: Collecting PNCs offers a unique window into the printing process. Each plate number provides clues about the different printing plates used, the variations between them, and even the changes in stamp production techniques over time.
  3. Visual Appeal: For collectors who appreciate the aesthetics of stamps, PNCs often feature intricate designs that make them stand out. The addition of a plate number adds an extra layer of interest.
  4. Collecting Challenge: Assembling a complete set of PNCs can be a fun and rewarding challenge. Whether you’re trying to find all the plate numbers for a particular issue or seeking out the rarest ones, there’s always something new to discover.
US#2468 – Used Plate Number Coil of 5

How to Get Started with PNC Collecting

Starting a PNC collection is easier than you might think. Here are a few tips to help you begin:

  • Educate Yourself: Learn about the different issues of PNCs, their plate numbers, and the intervals at which they appear. Mystic’s US Stamp Catalog is an excellent resource for identifying and understanding these stamps.
  • Network with Collectors: Join philatelic clubs or online communities where you can connect with other PNC collectors. Sharing knowledge and trading duplicates can help you build your collection faster.
  • Keep an Eye Out: PNCs can often be found in dealers’ stocks, at stamp shows, or online auctions. Be patient and persistent—finding that elusive plate number is part of the fun.
  • Store Properly: As with any collectible, proper storage is essential. Use protective mounts or albums specifically designed for coil stamps to keep your PNCs safe from damage.

Conclusion

Plate Number Coils offer a fascinating blend of history, art, and technical precision that can captivate any stamp enthusiast. Whether you’re a seasoned collector or just starting out, PNCs provide a rewarding challenge that goes beyond the usual boundaries of stamp collecting. By adding these unique stamps to your collection, you’re not just acquiring pieces of postal history—you’re also preserving a slice of the meticulous craftsmanship that goes into every stamp issued. So why not give PNCs a closer look and see what discoveries await?

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