Serrate roulette

Serrate rouletting is a method of separating stamps using a pattern of tiny cuts. This pattern was intended to create triangular edges that look much like perforated stamps seen from a distance.

Serrate rouletting can be done on printing equipment. However, unlike (proper) perforation, it is hard to check if the rouletting fully cuts through the paper (if that was even a concern). If not done, that can make it hard to separate stamps. This result is pulled "perfs", actually rather common with serrate rouletted stamps. So, catalog values reflect perfect serrate rouletted stamps and not those with faults and collectors should have a preference for serrate roulette stamps without faults.

Examples of serrate roulette stamps are the 1911-23 definitives of Greece and a few of the 1923 inflation issues of Germany.  File:Serrate roulette detail.jpg|Detail of serrate rouletted stamps before separation File:Greece 1L serrate.jpg|Greece 1911 1L value File:Germany 10mill serrate.jpg|Germany 1923 10 million mark value 