From what I can tell by the marks left on the rail tie downs after 60+ years of being on a jeep.
There are wear marks from the springs being in contact with the tie down plates that would indicate that they were placed between the original spring plates and these plates.
If you zoom in and study the above picture, you will notice the D/S rail tie down plate appears to be above the spring plate.
The arrows stamped on the rail tie down plates do not indicate a forward direction due to the fact of the hole position on the P/S front rail tie down plate.
The above picture and the rear facing "D" ring indicates that the front rail tie down plates were rear facing (arrows facing the rear of the jeep).
I do not have a clear picture of the rear plates but would guess that they "D" rings are forward facing? At least that is the direction that I will be placing them on my wife's jeep.
As noted by Ryan, these were for the M38CDN jeep.
Cheers
Pat