"vertibar"

Date1988

Inventory Number2014-1-0198

ClassificationDrafting Aid

Subject

Dimensionsobject: 27.5 × 17.5 × 2.4 cm (10 13/16 × 6 7/8 × 15/16 in.)
bag: 35.4 × 19 × 3 cm (13 15/16 × 7 1/2 × 1 3/16 in.)

Material

Descriptionone Vertibar tool in original packaging

In Collection(s)

Charrette Corporation and Lionel Spiro

Signedon object: MAYLINE (R) PAT. PEND

Inscribedon front bag: MAYLINE (R) / Get all the angles on drawing / faster, cleaner, easier. / 30°, 45°, 60°, 90° in one / convenient tool/ Draw longer verticals on / both sides of the VERTIBAR / without flipping / Raised glide points give / no-smear, no-wait inking / in either direction / Handy-grip knob / works on both sides / Transparent for / precision drawing / U.S. Pat. No 4,821,424 / 11" / 30.45.60.90 VERTIBAR / The most versatile tool for the drawing professional back of the bag: 30.45.60.90 VERTIBAR / Mayline / (on the left) (three illustrations) / Streamline your drawing / beyond expectations with / the MAYLINE VERTIBAR. / (on the right) The MAYLINE VERTIBAR is the single most / important drawing instrument for the / drawing professional. It gives you every / angle on every triangle and more. In one / position, the VERTIBAR forms 30° and / 60° angles, in others 90° and 45°. Both / top and bottom edges furnish a useful / short 45° angle. And the VERTIBAR gives / you two long uninterrupted sides for / drawing on both sides of the vertical / plane. No more drawing cross / handed. Less flipping / The sliding knob is easy to locate and / aids flipping. Though, transparent acrylic / plastic aids no-error precision. And the / VERTIBAR's molded-in glides reduce / surface contact, virtually eliminating / smearing and the need to wait for ink to / dry before drawing in the other direction. / Also available in 8' length. / Mayline Company, Inc. / PO Box 728 / Sheboygan, WI 53082-0728 / Phone: 414-457-5537 / FAX: 414-457-7388 / Mayline Company, 1988 / Printed in U.S.A. / Product No. PRO311

FunctionThis device is used to draft angles of 30, 45, 60, and 90 degrees.

ProvenanceLionel Spiro, Brookline, MA; Gift to CHSI, 2014.