Sheetlet

A sheetlet is actually a small pane of stamps. Really, almost anything has been called a sheetlet. So, the word has been used for any panes that are not big and floppy and hard for collectors to store.

This can have a smaller number of stamps vs. a "normal" pane, or even just a pane normally issued with a relatively small number of stamps. It can be a combination of designs or values of a set that are not se-tenant otherwise. 



Sheetlets have blurred the line between panes and souvenir sheets, the latter once issued for special events but now often added onto sets just because it can be done.