E. & G. Bartholomew, casemakers at Bristol, Connecticut, introduced the hollow column Connecticut shelf clock for 30-hour wooden movements c. 1830. This Empire-style case had a moulded cornice with 3 in. Diameter hollow columns on each side at the front, about two-thirds the length of the case, to accommodate the cast-iron weights. The bottom section of the case had veneered side panels and a framed door, containing a painted glass tablet or looking glass. A double panelled door was mounted in the upper section with the dial glass and either a painted tablet or mirror. While not common, this style of case was made for other firms who marketed and manufactured clocks both at Bristol and other Connecticut locations, and even as far west as Ohio. The veneer on the columns was applied as strips about 3 in. Wide, wound helically. Modifications of this style were made with carved top splats and carved feet. The case was in vogue until c. 1840 and a few examples are known containing 30-hour brass movements.