This is a Shakespeare model 1000 range/depth finder. Includes the device itself, transducer with cable, mounting bracket, power cable, and extra fuses. Also includes the original box, which is just a plain white box with "RF-1000" and "0-1000 FEET RF-1000 SAMPLE" written on it in marker. The serial number on the device is "00000". I was not able to find ANY information at all about this device online, so perhaps this was some type of manufacturing sample or evaluation unit for a new model which never made it to mass production. The device appears to be unused and is very clean. The transducer and cable are clean and appear to be unused. There is a what looks like a rubber belt on the inside that has deteriorated (see pictures 5 and 6)