Modified chest rig

Hello friends,

I picked up this chest rig in 2009 and recently decided to look it over. Its been heavily used and has a repair or modification to the H-harness. It was at one point camouflaged with a permanent marker. It also has some velcro straps added under the flap of the rear pack. Can anybody tell me what the writing says. I don't know what the model of this pack is oe what era it was used in. I do know from seeing other examples that the H-harness originally had a plastic keeper.

I don't know if it has an official designation, I've heard "R1" but have no idea if that's official or just a seller's label.
They were issued primarily in the 80's and 90's to armor and artillery members, the one I have posted in my thread is '83 dated, not sure when they were first adopted.
They were surplused heavily into the US by the 2000's so they must have been phased out at some point by then, for awhile they were everywhere, some places like Cheaper than Dirt had them for $10 a piece.

Thanks for the information. Hopefully I can find one in the original configuration.