Two Young & Sons Surveyor's Transits, no. 8377 and no. 7821, aluminum and brass instruments with 8 1/2- and 10-in. scopes, horizontal circles with verniers, engraved compass dials marked as above, mounted on four-screw adjustable bases, both housed in their original fitted boxes and accessories, no. 8377 with side-mount scope with box stenciled "Mines No. 5." Provenance: Robert Miller Collection. Estimate $400-600 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.