THE highest estimate of £4,000 £4,500 at next Tuesday's auction being conducted by Thomas P. Adams & Co in Blackrock, is for an early 20th century ruby and diamond bow brooch. Other items of jewellery in this sale include an art deco diamond brooch (estimate £1,600-£1,800) and a pair of antique diamond cluster earrings (£1,400-£1,500). There is also plenty of furniture on offer, such as a William IV mahogany sideboard (£1,000-£1,200), a Victorian mahogany pedestal desk and a Victorian eight branch chandelier (both £900-£1,200 each) and a Victorian mahogany davenport (£800-£1,200).