L-749A Constellation N6020C / 820 (cn2658)
 

When was L-749A Constellation N6020C/820 (cn2658) actually broken up?
The Lockheed Constellation Production List indicates it was broken up at Tucson in August 1968.
On www.airliners.net, a caption for photo ID: 0076828 indicates Tucson in 1969.
A second reference on www.airliners.net, photo ID: 1132199 shows an image of N6020C taken in Arizona , dated July 1970.
The Lockheed Constellation Production List would seem to be the authoritative source, but the other references create some doubt.