This Incandescent Lamp Patent Poster is printed on 45lb. archival safe, fine art paper. Choose color and size from drop down list. Quality Enhanced Reproduction of the original patent artwork from 1890. (The use of new archival technologies means these prints are designed to last for decades). Ships in heavy mailing tube with end-caps or heavy envelope via USPS Ground Advantage. BUY NOW!........and purchase a truly unique keepsake gift.