This is some plywood that I picked up at the curb on our heavy pick up day. Can anyone identify it? It is 3/8" thick and 5 plies. The center ply looks a little thicker. One side has perfectly uniform grain with pretty much no flaws for the whole sheet. The other side has lots of little holes. The piece I got was about 23" by 74", so I am guessing the whole 4x8 sheet probably looked like that.
https://i.ibb.co/2ZyW2wS/1014190705.jpg
https://i.ibb.co/dfFpgjv/1014190706.jpg
1014190705.jpg
1014190706.jpg