That appears to be a pretty nice Inland (?) Type II highwood sock which has seen some use but does not appear to have been sanded or abused. This is a valuable stock and a LOT better than most stocks found on $700 mixmaster carbines. You might want to replace it with a good (and cheap) Type III (low-wood) or Type IV or V (M2) replacement stock if you plan to shoot it, and save or sell the valuable early highwood stock. JMHO