Collections, Lots Postage Stamps

Stamp collecting — or philately — is one of the world’s oldest and most popular hobbies. Here’s a rundown of what you need to know about collections and lots:What Is a Stamp “Lot”?
A lot is a group of stamps sold or traded together, rather than individually. Lots can range from a few dozen to many thousands of stamps, and are common at auctions, estate sales, and online marketplaces.Types of Lots
Kiloware / Mixture — unsorted stamps, often sold by weight, clipped from envelopes. Great for beginners and variety hunters.
Country lots — stamps from a single country (e.g., all US, all GB, all Germany).
Topical/thematic lots — grouped by subject: animals, space, royalty, maps, trains, etc.
Classic/vintage lots — pre-1950 stamps, often with higher catalogue value.
MNH (Mint Never Hinged) lots — unused stamps in pristine condition, most desirable to collectors.
Used/cancelled lots — postally used stamps; still highly collectible.
Errors & varieties lots — inverted centers, missing colors, perforations errors — rare and valuable.