Well, shall we add a little more confusion into the mix? Thanks to member Keith Tedford for sending me some pictures.
The picture on the left is a 69 COPO and was taken the day the owner brought it home new. It appears there is a stripe on the "driver's" side of this hose. But no indication from what we can see of any lettering or part number.
The picture on the right is Keith's COPO and was taken in 1970 or 1971. This one appears to have a stripe on the "passenger's" side of the hose. the picture did not cover the other end of the hose.
As has been mentioned, these hoses obviously differed at certain times and probably at different assembly plants due to the suppliers.
At this point I'm not sure if I'll do any replicating to my hose, just thought I would add something extra for observation.