I stumbled upon this site by accident. I thought I'd share it with you all just the same, It's called Magic Posters Direct, or https://www.magicpostersdirect.com. They produce magic poster reproductions on wood. They only have one size from what I can see, 24x36.
I can't vouch for the quality or anything, I am just letting you know about them. I know some folks in the magic history world, don't care for reproductions and would rather have the real thing....wouldn't we all. But these look like they'd make for a nice display. They aren't super cheap, but not super expensive either. One great thing about them is they do not need to be framed, which is often as much or more than the poster!
They don't have the selection the selection that Nielsen Magic has however. But I like fact they are printed on wood. Now speaking of Nielson Magic, Lupe has a huge amount of poster reproductions in various sizes. She also has incredible magic for sale, most of which she builds herself. She's got a great selection of books for sale and other magic items. I always encourage folks to check out her site.