Web24 apr. 2012 · When pictures are framed properly, they form a package that significantly damps out fluctuations in the humidity of the surrounding air. Expansion and contraction (in absolute terms) depend, of course, on the size of the picture—a 20x30 inch picture on a natural paper ground will be a couple of millimeters larger overall at 90% humidity than it … WebLithographs are framed under glass, or glazing, to protect the paper. The glazing should be Conservation grade which means that it provides UV filtering protection for the art. Plexiglas is a good option in that it is shatterproof and notably lighter than glass.
Lithography - Wikipedia
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Antique Lithographs - Etsy
WebAntique lithograph Americana William Sidney Mounts “Dance of the Haymakers” (1845) Large Oak frame Farmhouse Decor Primitive. ad vertisementby TruevintageantiquesAd … WebLithographs are framed under glass, or glazing, to protect the paper. The glazing should be Conservation grade which means that it provides UV filtering protection for the art. … WebWatch Ph.D. Antiques Appraiser Dr. Lori show you secrets to pricing lithographs and antique frames to find #bargains. See how to date frames by their decorative art designs and by looking at... ray tracing lens on resume