So i was digging the surface of a dump out in my woods and came across a lot of glass bottles/jars, also some license plates from 1930 and 1932 so i knew the stuff was old! The bottle say "MUCO-SOLVENT", "BAYER ASPIRIN", "THE BAYER CO. DIV.", "WHITEHALL", "CHESEBROUGH MANFG. CO. CD. NEW-YORK", FURST-McNESS CO. FREEPORT, ILL. U.S.A". On an amber bottle there is a "A" with an eagle thru it, what logo is that?? I wait to dig deeper! any advice?