RARE Intel Intellec Blue Box Model MDS 220 Development System 1978, no keyboard.  A similar keyboard alone was listed $600 on Ebay.

It powers on, fan running, and the CRT lit up!

Very heavy, around 100-150 lbs. 

Prefer local pick up.  

Shipping to be via Freight, I can help you get quote etc. Right now I just estimate a 300$ and will be adjusted later.  Handling fee is $60.