Vintage Genuine Model 1390120 Keyboard w/Cover for IBM XT Computer System (eBay)
Quite a reasonable price for one of these 1st-generation, no-LED boards in what looks like very nice shape. It includes a cover and the original black AT cable. The seller hasn't posted a photo of the back, but he tells me it's the normal label, not the earlier barcode version. (I've suggested he add a photo of it anyway.)