Trevor Philip & Sons Ltd. has been at the current address since 1986 and specialises in antique globes, early scientific instruments including barometers, surveying instruments, microscopy, astronomy, navigation and time keeping, and more recently naval binoculars. Members of the British Antiques Dealers Association, the company exhibits once a year at TEFAF in Maastricht and has links with numerous international museums. Mr Waterman is a founder of the Scientific Instrument Society and the company supports various academic projects in many museums.