Use the following chart of Mason & Hamlin serial numbers to help determine the age of your piano. The serial number of your Mason & Hamlin piano can be found in several locations, depending on what model of Mason & Hamlin you are trying to date.
Mason & Hamlin Serial Number Locations
1. Model B, A, AA and BB grand pianos

First, sit at your piano like you are playing it.
Then look into the piano plate and to the left of the centre of the piano. There should be a serial number stamped …

In 1887 Justus Seeburg started his career in the piano industry. He spent these years in the Chicago-land area. The first company Seeburg worked for was C.A. Smith this later became Smith, Barnes, and Strohber.  Seeburg then went and worked for Bush and Gertz. After Bush and Gertz he became the manager of the Conover Piano manufacturing facility of the Chicago Cottage Organ Company.

Have you ever wondered how old your Steinway piano is? An antique is classified as something over 100 years old. You can read more about the differences between antique and collectibles in the article differences between antiques, collectibles, and vintage item. Steinway has been in business for around 150 years making only 50 years worth of pianos antiques. To find the age of your Steinway piano please see the Steinway chart below.

Hupfeld’s ‘violin player’ was one of the marvels at the World’s Exhibition of 1910 in Brussels.
The Hupfeld Phonoliszt Violina was made in Germany by Ludwig Hupfeld.
Hupfeld was the world’s leading manufacturer of automatic pianos and orchestrions, 1892-1930. They also made rolls circa 1934. Founded in 1892 when Ludwig Hupfeld took over J.M Grob & CO. ultimately employed over 2500 people in several factories, the largest including about 1 million square feet of floor space.