Protractor Triangle-Deluxe - Celestaire, Inc.

Parallel Plotter - Celestaire, Inc.

Celestaire

Basic Tools - Celestaire, Inc.

Divider and Rulers – MORBAI

Lighted Dividers - Celestaire, Inc.

The Nautical Sextant - W. J. Morris, PDF

These professional triangles from Staedtler Mars feature precision-cut straight edges for pencil work and a beveled center with a cut-out finger lift.

Staedtler Triangle 8 in 45 Degree Clear

Navigation Equipment International Catalog - Celestaire

Above Ground Art Supplies

Helix - Swing Arm Protractor - 180 Degree Rotation

Protractor Triangle - Standard - Celestaire, Inc.

Navigation Equipment International Catalog - Celestaire

With bevels on all four sides; springs built in the bearings ensure a smooth motion which is critical in parallel rule operation.Cork disks on the

Brass Graduated Parallel Rules