Weird, looks more to me to be probably from probably the early Tramiel era, since it has the gray color that was more associated with the ST/XE time period.
I would probably buy it if it weren't for the 50 bucks in shipping. There is already a bid on it, hopefully someone on the forum buys it and figures it out. It does have a hard drive, so I'm betting it is an ST of some type. The HD even looks like the one that came with my Mega STe.
Atari 8Bits: 800xl, 600xl, XEGS, 800, 130xe, 130xe (VBXE, U1MB, Stereo POKEY)
Atari STs: 1040STf (broken shifter), 1040STe, Mega STe, TT030, Falcon (CT60e, SuperVidel)