The Super Express has the red pad and monte carlo comb IIRC, the Safari Express had a classic stock with no monte carlo.
But whether a Super Express or Safari Express you have one of the more sought after Winchesters, a left hand .375 H&H. The market for LH Winchesters seems to have dropped a bit recently but I would make a guess that yours is still worth well north of $1000 and in like new condition might bring up to or over $2000 through an on-line auction site like Gunbroker. Don't quote me on that since prices seem to swing a lot depending on demand, but whatever the price it's still a very valuable rifle.
And yes, Winchester quit making LH Model 70's when US Repeating Arms Company went under around 2008 or 2009 and the current owner of the Winchester name doesn't seem interested in making any more.
