Box of dividers


Accession Number: 2012.ast.13


Box with 11 dividers inside, wrapped in wax paper and cloth bag. Each divider is 18 cm long and has adjustable legs ending in sharp points.

Alternative Name: Compass divider

Primary Materials:

Steel/Iron. Cardboard box. Cloth bag and wax paper.


1) Label on top of box: “The Genuine and Original Irwin Bits [drill bits], Made in U.S. of A., The Irwin A[...]it Company, Wilmington, Ohio, U.S. of A.” Purple moving label: “dept.”

2) Label attached to original box: “24 dividers, Sept. 1947.”

3) On wax paper in light pencil: “13B/68.”

4) On cloth bag, tag with: “Royal Canadian Air Force, Technical Service Stores, Ottawa.”

5) On 10 of the dividers: “R.C.A.F. Ref. No. 13B/68.” Machine engraved on one of these is “152”, on another is hand engraved “R. Pease.”

6) On the other divider: “Charvos Inc. U.S.A.”

Dimensions (cm):

Box: Height = 5 x Width = 26.5 x Length = 6.5, Dividers: Height = 18 x Width = 1.5 x Length = 0.4


To measure, transfer or mark off distances – esp. on maps or star charts

Condition: Good

Associated Instruments:


Royal Canadian Air Force (10 dividers), and Charvos Inc., USA (1 divider).

Date of Manufacture: c. 1945


University of Toronto Department of Astronomy and Astrophysics

Donated to UTSIC: No

Historical Notes:

Some association with RCAF, probably during WW2.

“divider.” Encyclopædia Britannica. Encyclopædia Britannica Online. Encyclopædia Britannica Inc., 2012. Retrieved Feb 12,. 2012 from .