- A "Knothole"
is a cover with a hole designed
into it so that
- the matches are purposely visible (see example
on the left).
- Often, this is because the matchbook is also
- where the matches, themselves, have art work
- (see example on the right). Although most
- the matches out of covers, Features, for
- are always kept intact. Features were another
- the Lion Match Co., and they reached their
- the 1950s. These are highly collectible covers,
- those not into the hobby.
- 553 Knotholes were listed as of 2016, and
- Features are known.