Microsoft Sculpt Ergonomic Keyboard and Numpad Model 1559. No dongle, no back cover. Untested, therefore sold as parts. The green light between the space bar lights up OK when batteries are inserted - see pic. Unless you have a 1559 dongle, it will not connect to the PC/laptop, as far as I know, as the connection is proprietary. Also, there are different versions of Sculpt. This is 1559 - see pic.
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