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Aviation History
1941
1941 - 0422.PDF
P Advertisements. FEBRUARY 2OTH, 1941 Why TURWOtSE It Through the medium of 17 permanently accurate and uniformly spaced grades of lead, "Qu/mi-Sealed" TURQUOISE pencils givethe exact thickness of line you require for every architectural or mechanical drawing requirement.Accuracy of grading, however, is but one of several TURQUOISE superiorities. Remarkable point strength, extra smoothness andperfect blue printing quality are other sound reasons why so many architects, engineers and draughtsmen remain faithful to this basicallybetter drawing pencil. Write on your business heading for FREE sample set, stating degreesrequired. Made in England by EAGLE PENCIL COMPANY, LONDON, N.I7. Props, of Brit. Regrf. Trade Mark "Ck&mi-Sealed.* The lead in every pencil bearing our Registered Trade Mark "CKMTU-SMLKI" I$ covered *ith an impervious film patented process) to which glut adheres perfectly, thus bonding lead and wood into a single unh so strong that point' breakage is normally impossible. This film o/sj prevents waxes in the lead from being absorbed by cedar casing—so makes for uniform density and extra smoothness all through 5p. each 4/8 dozen (including tax) From your usual Supplier CKe/mi-Sealed, * KISIKTIMO THAU MMM D R A W I 17 DEGREES: 6B. 5B. 4B. 3B. 2B. B. HB. F. H. 2H. 3H. 4H. 5H. 6H. 7H. 8H. 9H; e have been privi years in the succ the now i nd S urm9 tooling and WELLINGTO MORRISONS
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