rouletting in colored lines.

[Illustration: Rouletting Forms]

[Illustration: Rouletting Forms]

There are a number of systems which produce the effect of rouletting in
a variety of fancy forms. One is called _percé en arc_. This produces a
series of arches on one stamp and a series of scallops on the adjacent
one. Here is an example of this rouletting, in a small gauge. A similar
form is called serpentine perforation. It is here shown.

[Illustration: Rouletting Forms]

[Illustration: Rouletting Forms]

Still another form leaves the edges of the stamps in sharp points. This
is called _percé en scie_ or saw-tooth perforation. When this
perforation is very fine it is called serrate. There is still another
form of rouletting, which we also show you. It is called rouletting in
oblique parallel cuts and consists of a row of short cuts placed
obliquely and parallel to each other. Stamps thus rouletted have a very
ragged edge when torn apart. This roulette was only used in Tasmania and
was a private production.

[Illustration: Burelage]

[Illustration: Control Number, 70]

[Illustration: Moirée Pattern]