not much. the 1911 was made for the military. The 70 was a later commercial model of the 1911
100-600 USD
100-700 USD or so
100-1500 USD
You will have to call Colt to find out.
Colt data at Proofhouse.com
I would pay $1000 plus for a Model 70 in mint condition.
Late 70's. Your best bet is to call Colt.
I would pay $1,000 for one in excellent cond.
100-1000 USD depending on specifics
Go to proofhouse.com.
@ 1978