A David E. Becker newer variant, worthpoint: LINKDavid E. Becker Hair Raising Stories, Notice the citron color variant. He was listed as a druggist in Easton, PA from 1877-1885. Earliest bottles were only embossed "D.E. Becker".HERE is the amber variant of your bottle, with label. I'm assuming yours is the rarer variant as he does not have a picture or description of an earlier citron variant.Therefore, I would say yours dates roughly 1877-1880.