Three Philadelphia Surveyor's Wye Levels, two William J. Young levels in their original fitted boxes, and a 18-in. Young & Sons level with cast aluminum and brass base. Provenance: Robert Miller Collection. Estimate $100-200 Items may have wear and tear, imperfections, or the effects of aging. Any condition statement given, as a courtesy to a client, is only an opinion and should not be treated as a statement of fact. Skinner shall have no responsibility for any error or omission.