I came across this print at a bargain store a couple weeks ago. At first I thought it might be a variant of a Lockheed L-188 Electra; then I noticed that it has at least 6 engines, as the print extends around the edge of the canvas and you can see a couple of propeller tips there. I haven't had any luck finding a 6- or 8-engine aircraft that matches it.
Edit: after looking at it a little closer, I think the edge might be a printing effect, an imprecise mirroring around the edge line (for example, some of the splotches look very similar to those in the front). So maybe it is only four engines?