I have a October morn signed by robert wood and 56 on it... there's no brass plate... I looked at his signed robert wood up of October morn and it is the same as my picture... how can I find out if its real? Which I think is...

I would say pawn shop but they rip you off

Call or visit the reference desk at your local library or even at a college/university library in your area. They will have an antiques and collectible description/price guides plus books on how to locate dealers whom you can call to ask about the authenticity and value.