That MB has no VLB slots, and no PS/2 mouse header, making it rather boring in my opinion. I wouldn't pay more then 10-15$ for it.
[EDITED] - I tought he was selling the 133Mhz Cyrix. The 120MHz cyrix is rare, but not worth the rest of the sum. 100 and 120MHz cyrix CPUs are rather common in eastern europe since big companies like IBM and Compaq didn't dominate sales like in the west. Romanian PC sales companies favored the Am586DX5 and the Cyrix 586 CPUs because of their low price and good performance, so they are a lot more common then say... the 100MHz Intel DX4. As a matter if fact, I've only seen one Intel DX4 CPU, and that was way back in the day, inside of an IBM Aptiva system. All others were boutique built systems with Cyrix or AMD CPUs, or newer Compaq/IBM/HP/ETC Pentium based system.