Here are some pictures.
First picture of the "Shortie Hoses", assembly line correct with the single crimp & 3 ribs
2nd picture of the pump ends of the pressure hose left to right is Original, NOS, NPD's reproduction
3rd picture of the rubber insulator & hose ink markings. NPD's top, NOS center, Assembly line lower
4th picture of the center crimping & steel hose protectors. NPD's top, NOS center & Assembly Line lower
5th picture of the control valve ends. NPD's Left, NOS center and assembly line lower
6th picture of the RETURN line control valve ends, NPD's upper, NOS center assembly line lower
7th picture is of the NOS lines threaded into the control valve.
8th picture is of the assembly line hoses threaded into the control valve and
9th picture is of the NPD lines threaded into the control valve.
The NPD lines required work to get them to lay against the valve like the assembly line hoses did and naturally, the NOS lines required very little to no adjustment to fit like the original lines.
Summary: KEEPING IN MIND THIS WRITE UP IS FOR THE SMALL BLOCK POWER STEERING HOSES FOUND ON THE EARLY 1967 SMALL BLOCK MUSTANGS (with the 1/4" fitting) and NOT to be compared to BIG BLOCK MUSTANGS though the hoses would be very similar in looks and fitment as the later 67-68 small blocks that use the 5/16" fitting pressure hose & control valve. These are my findings when comparing 2 hoses I have found that LOOK much like the Concours, assembly line hoses. (NOTE: The only reproduction "Shortie" hoses found that closely match are made by Blue Dot, but they look more like the later hoses found in 70 Mustangs, not the early, single crimp type with large ribs in the hose like originally found on the 67's)
The NPD Pressure & Return lines WILL WORK if NOS cannot be found. Bending required to make them fit right.
NOS lines are the closest match I have found (to date) They are NOT easy to locate and priced accordingly.
Original lines are the only thing found to be exact & as Bob Gaines has pointed out, there are some differences as seen in the photos, differences mostly in the crimping in the center and at the lower ends but NO noticeable difference in the crimping on the end where it attaches to the pump.
I feel the NOS hoses I have found this past weekend are likely the closest available to the original assembly line ones. In reality, other than some coloring issues, IMHO, the NPD lines really are not that bad looking when you lay them side by side. Earlier, I mentioned the return line to be a swing and a miss but after tweeking it with a tubing bender and my fingers, using the control valve and the original hoses as a guide, I was able to make them fit fairly good (as seen)
I hope this helps somebody else out there, it has been a REAL chore for me to get these examples available in these side-by-side pictures. I had resigned to using the NPD hoses till I found the NOS ones. If I couldn't have found NOS, I surely would not have hesitated using the NPD lines till either I did find NOS or till they began to leak...just saying
