IBM PS/2 model 30

Year: 1988.
Operating system: IBM DOS 5.02.
Processor: Probably Intel 8086.
Clock speed: 10 MHz.
RAM: 640 kB.
Hard disk: 10 MB.
External storage: 3.5" 1.44 MB diskette drive.
Monitor: 12" monochrome VG.
Extras:
Peculiarities:
Still missing:
Donated by: J.W.M. van Berkel.

I have found some contradictory information on the Web concerning harddisks and processors of this thing. Msd.exe tells me '8080 or 8086' and reports an 10 MB harddisk. I find that a model 30 with 286 processor has a 20 MB hard drive. Look for instance at Brandon's Computer Museum. But according to General Technics a model 30 with 8086 processor should also have a 20 MB harddisk. I find it strange as well that a 8086 should have a 3.5" diskette drive, and a 1988 pc could hardly have a 8086 processor since the 286 was introduced in 1982!. IBM Canada has some specs, but not too helpful in this matter. Anyway, if you know more, please help me out.