Yep, 34 -OT. Just an FYI for future reference.
As to stainless or carbon, it's hard to say. That was the final tang stamp pattern used on the 34OT, but it was used for many years. If your's was made towards the very end of production, there's a chance that it's stainless. If it was made a couple of years before Schrade closed, then there's a good chance that it's carbon.
You can test the blade to see if it reacts like carbon or stainless. If it's a user knife, there's no harm. But I'd hesitate to test mint-condition collectible.
Also, a photo or description of the original packaging (box or cardboard insert from a clam pack) will help narrow the age the of the knife and perhaps provide a definite answer.
Best Wishes,
-Bob