The Siemens Model M-22, carbon hearing aid was made by Siemens & Halske A. G. of Germany around 1925 (engraved on the back side of the microphone) and was marketed in America under the DUOTONE name by The American Phonophor Corporation of New York.

The double carbon amplifier microphones measure 4¾" x 2⅜" x 7/16" thick. The front view sports two decorative "snowflake" designed ports, and the base has a small swiveling leg for standing on a flat surface...

Offered is cased, high-quality, vintage microscope slide stage. Precision manufactured by the Spencer Lens Company of Buffalo N.Y., this scientific instrument is in excellent condition. The stage fits perfectly into a velvet lined mahogany case and dates to the early 20th century.

The case measures 5.5" L x 5' W x 3" H...

Offered separately are 2 complete sets of cased, OHAUS, brass PHARMACY weights dating to the 1950-60s.

The weights are housed in plastic, fitted cases and include tweezers for securing the various milligram weights. Each cased set offers a total of sixteen gram and ounce brass weights - 1 metric, small, coin-size weight and various, metal, gram and grain weights.

The cases measure 4.5 inches long x 4 inches wide x 1.75 inches high...

This is a scarce collection of 22 Homeopathic Medicine bottles complete with contents, corks and labels dating to the turn of the 19th century. Each vial sports an applied label that indicates the contents plus a cork with hand-written ingredients noted. The vials measure between 2 - 2.5 inches high x 1/2" including the cork...

Offered is a wonderful 1920-1930s era Asthma Remedy bottle labeled HIMROD'S REMEDY. This lovely nostrum sports bright colored graphics and includes full contents and image of the debonair Mr. Himrod.

The condition is very good with the expected wear and minor scuffs and imperfections of a vintage piece.

There is even a high profile testimonial on the top box label from Dr. Oliver Wendell Holmes who claimed this medicine to be "the best thing in my experience" etc...