Cool bottle.
Always need to take Etsy and eBay etc listings with a pinch of salt (and sites that feed off Ebay listings such as Worthpoint) since you’re getting unverified opinions from a seller, unless they provide references. The Etsy listing above says it’s ‘mid-1800s’ which is a bit of a stretch.
Warner bought the rights for the product from Dr. Charles Craig of Rochester in 1879 and Warner’s first bottles from late 1879 were embossed ‘Craig’s Original Kidney Cure’. Within a short time all references to Craig disappeared from bottles and advertising, and the embossing on the bottle changed to ‘Warner's Safe Kidney & Liver Cure’.
Bottles like yours were produced in both amber and olive glass between about 1880-1900 and perhaps a bit beyond. The earlier ones have ‘A&DHC’ embossed on the bottom for the Alexander and David H. Chambers glass company. From 1889 the A&DHC company almost exclusively made window glass and Warner had to source his bottles elsewhere.
