Hello, This past weekend-end I purchased a batch of very old stock from a man that was moving. Mostly Mahogany. I could see the grain and identify it. There is one piece 28x54x2 that he said was Mahogany. It is rough sawn with numbers painted on the ends and sides, and is much heavier than the Mahogany. Also much darker in color. I have read here in the past that there is a place you can send a sample and get wood identification. If anyone knows this address please send it along.