A grouping of attached, unseparated stamps, often with a shared design or theme, constitutes a cohesive philatelic unit. These units can range from a small cluster of four stamps to much larger... Read more »
These specialized blocks, typically made from materials like linoleum, rubber, or polymer, provide a smooth, yet firm, surface ideal for carving detailed designs. Soft enough to be carved with hand tools, yet... Read more »
A marginal grouping of stamps, often four or more, printed from a single plate and including the selvage containing a plate number, represents a desirable collectible. These groupings offer a glimpse into... Read more »