(2) SCHAEDLER PRECISION RULES 12" Typesetter Rulers Graphic Design

Description

12" Double Pack Original Twin Set
Contains two 12" rules, one each of the “A” and “B” rules as described below.
12" Single “A” — #46-IM
Standard Inch/Metric
This rule shows
Standard Inches
in increments of
64ths of an inch
photographically printed along its top edge. It has numbers every
32nd of an inch,
every
16th,
every
8th
and so on— for the entire length of the rule.
Metric Millimeters & Centimeters,
in half-mm markings, are printed along the 30 cm bottom edge. In scientific circles, mm’s and cm’s are referred to as
metric measurements
or SI units (from the French Systéme Internationale). Thought you’d like to know that.
To round out this classic Schaedler Rule, we have placed
Printer’s Points & Picas
down the center. These are the original points & picas still used in the printing industry — where six picas are equal to .99576 of an inch, not quite a whole inch. We’ve coated this entire Single “A” rule with a blue color tinge so it will be easier to find on a cluttered work-table.
12" Single “B” — #46-DIP
Decimal Inch/DTP Picas
The
Decimal Inch
is divided into 100ths instead of 64ths. Suppose you had to break an 8½" page into three equal columns. The easiest way is to divide 8½ by three. The answer is 2.83. But that’s a decimal answer. How do you convert it back to standard inches? With the
Schaedler Decimal-Inch Rule
you won’t have to bother.
DTP Points & Picas
(DTP = DeskTop Publishing) have been placed on the other edge of this rule. And this time, the points and picas
do correspond
to standard inches. 12 points = 1 pica; 6 picas = 1 inch. The scale is cumulatively marked in both points and picas for the entire length of the rule (72 picas or 864 points = 12 inches).
There’s also an
Agate Line
scale that runs down the center space of this rule. Agate lines were once used to define newspaper advertising space (so many agates by so many columns). Maybe they still are. This “B” rule has a pinkish cast to help distinguish it from the “A” rule at a glance.