Check the listing for details. Theodolite Brass Alidade Transit Telescope Working Compass Survey Instrument. Condition: New. Listed at 32.80 USD. The Hampton Nautical Brass Alidade Compass with telescope and bubble level is a beautiful desktop nautical gem or can rest perfectly on a mantel or bookshelf. This solid brass alidade has a magnetic compass mounted beneath it for guaranteed accurate readings. On the telescope is mounted a bubble level for precise sighting. Alidade is mounted on solid brass support with a complimenting hardwood base which has 3 adjustable leg-screws for perfect balance. Fine-quality reproduction for surveyors to align and measure vertical and horizontal angles. This solid brass nautical gem features a real working telescope. Key Features:-Solid brass functional telescope-Adjustable compass for accurate bearings and measurements-Bubble leveling & feet screws precisely align alidade and compass