No Image Lot 457 A contemporary engineer built Congreve-type rolling ball time piece, likely by Ron Webb, based on 457A contemporary engineer built Congreve-type rolling ball time piece, likely by Ron Webb, based on Stamford Auction Rooms A contemporary engineer built Congreve-type rolling ball time piece, likely by Ron Webb, based on a design by John Wilding, with key, 39cm high. Add to watchlist Live
