USGI World War ll Keyes Contract Original 1911A1 Colt .45???

Description

Four good sets of Colt 1911 grips. They look like vintage USGI grips, marked with a K in a circle on the back of each.  I took a close up of one set to show the checkering. I tried these all on my old 1911 and they fit perfectly. No reserve!
WW1, WW2, Remington Rand, Ithaca
On Aug-12-21 at 17:50:04 PDT, seller added the following information:
A few folks have asked about markings on back and any defects. Here is what I see:
-One grip has only a 7 in the middle part of the back of grip
-One grip has a K in a circle with a 15 next to it AND a serial of 5564063
-Six grips have a K in a circle with either a 20, 16, 6, 13 or 28 next to it. The one with a 16 has a hairline crack in the back which is not visible from front a small chip in the corner.
Overall these grips are in good shape.