Whoa is that ever cool. Is it an old Fritz Lang era poster? It's great anyway. If you want to protect it you need the correct glass and correct mounting. I just had four works on paper framed with conservation glass, floating mount and a simple 1 1/4 inch frame for $233 each. They were all 30 x 22. If you want glare free glass add $50. You can matte frame it a little easier for $25 less...(the edges are covered with a matte). But if you just get an ikea frame or off the shelf michael's frame it likely won't protect it from UV harm. It will fade fast in the sun. But it will offer some protection from other damage.
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