Applies to the mfg. of flat, unglued suit boxes, folded or glued paper cartons and containers including folding boxes used for foodstuffs, hardware, drugs, candies, display purposes, cigar and cigarette shells, slides, folding egg boxes and ice cream and oyster pails. Printing operations conducted by risks classified by 4243 are assigned to 4243 and are not subject to a division of payroll. Contemplates paper and/or fiberglass filter mfg. Metal filter mfg. to be separately classified. Paper or paperboard mfg. to be separately rated.