I think the stock was a replacement made by Springfield Arsenal (SA). Springfield made both handguards and stocks for use by Ordnance when replacing damaged wood.
The handguard is an Inland.
The stock is "correct" for a rebuilt or repaired Carbine, but it didn't leave the Inland factory with that stock. Since virtually all Carbines were rebuilt or repaired during service, it's completely normal to see replacement wood by another maker or by Springfield.
"High wood" is an early type of stock that didn't cut the slot for the operating rod. In other words, there is no actual slot cut in the stock to clear the operating rod, just a slot cut in the handguard. Since these tended to crack around the operating rod, they started removing a slot-like section from that area.
An M1 Carbine stock will not have a cut on the left side of the receiver for an M2 selector switch, and won't have the M2 "pot belly" thick fore end.