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So my wife's family asked me to come over to clean out the house of an elderly relative who is moving into a nursing home. While there, I found a room full of Celtics memorabilia. Mostly old newspaper clippings, etc. Nothing too excitig. But I opened a drawer and found the photo below which appears to be signed by Larry Bird and Magic Johnson. I'm wondering if it's real. Anyone have any ideas/insight?

From what I can tell, it looks real. Usually fakes have similar hand writing and/or the auto is shaky. It looks like both of their autos. Looks like a good find.