For the purposes of this part ??? (a) the term ream means 432,000 square Inches; (b) the term cut to size or shape means paper or paperboard without slits, holes, or other perforations which is ??? (i) In rolls or strips not exceeding 6 Inches in width, (ii) in rectangular sheets not exceeding 15 inches in either length or width (except handmade paper the e