Vintage E. Edelmann No. 20 “Zero-Tester” Alcohol Tester w/ Box & Instructions For Sale

Vintage E. Edelmann No. 20 “Zero-Tester” Alcohol Tester w/ Original Box & InstructionsDESCRIPTIONVintage E. Edelmann & Co. No. 20 “Zero-Tester”, manufactured in Chicago, U.S.A.This is a very interesting vintage industrial/automotive testing instrument designed for testing denatured and high-proof alcohol. The original manufacturer’s instruction sheet is included and clearly identifies this as the No. 20 “Zero-Tester.”INCLUDED* E. Edelmann & Co. No. 20 “Zero-Tester”* Original glass testing assembly* Original thermometer/float assembly* Original rubber bulb* Original rubber tubing* Original vintage box* Original box label/instructions* Original manufacturer’s instruction sheet* Original packaging materialsThe instruction sheet includes detailed operating instructions as well as the original replacement-part information for the No. 20 model.CONDITIONThis is an original vintage piece in found/as-is condition.The original cardboard box shows considerable age, wear, discoloration, tears and general storage wear, but the original No. 20 “Zero-Tester” label remains attached, which is a wonderful feature for collectors.The instruction sheet is also original and shows age-related yellowing, staining, creases and wear.The tester itself appears complete from the pieces shown, but I have not tested it and cannot guarantee that the instrument, thermometer, rubber components or other parts are functional.Because of its age, the rubber components may have deteriorated over time.Please carefully review all photographs, as the pictures are an important part of the description.I have intentionally left this item in its original condition rather than attempting to clean, restore or replace any vintage components.A GREAT COLLECTOR’S PIECEThis would make an interesting addition to a collection of vintage automotive tools, industrial instruments, scientific instruments, hydrometers, advertising memorabilia or early 20th-century testing equipment.The combination of the No. 20 instrument, original box, original manufacturer’s paperwork and period packaging makes this an especially interesting survivor.Please note: This item is being sold as a vintage collectible/testing instrument and is untested. It is not being represented as a currently calibrated or professionally certified measuring device.