Retired/Reserve stripe

[willie777]

I am aware that there was a metallic stripe, 28 mm wide (the opposite color of the shoulder board-silver stripe on gold board, gold stripe on silver board) worn near the bottom of the edge of the shoulder boards to denote reservist/retiree status. The retiree stripe had a zig zag line running across it in a color opposite the stripe. The reservist stripe was without the zigzag. As far as I know, these stripes were introduced in 1947 but later disappeared from regulations.

At what time did these stripes cease to be authorized on uniforms, and for what reason?