--subdivision Drawings under technical topics for collections of drawings, plans, etc., and for the technique of making such drawings, unless a separate heading for the technique has been provided, e.g. Automobiles--Drawings; Automotive drafting
--subdivision Drawings under technical topics for collections of drawings, plans, etc., and for the technique of making such drawings, unless a separate heading for the technique has been provided, e.g. Automobiles--Drawings; Automotive drafting