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Grinnell Brothers Piano Serial Number Lookup

Grinnell Brothers Piano Serial Number Lookup

If you own a Grinnell Brothers piano, you might be curious about its age and history. One way to find out more about your piano is to look up its serial number. A serial number is a unique identifier that tells you when and where the piano was made, as well as other information about its production and quality. In this article, we will show you how to locate and interpret the serial number of your Grinnell Brothers piano.


Who were the Grinnell Brothers?

The Grinnell Brothers Piano Company was established in 1882 in Detroit, Michigan by brothers Ira, Clayton, and J. Wallace Grinnell. They started as a music retailer and later expanded into piano manufacturing, becoming one of the largest and most successful piano companies in the Midwest. They produced a variety of pianos, including uprights, grands, baby grands, and player pianos, under their own name and other brand names such as Whitney, Fischer, and Howard. They also sold organs, phonographs, radios, and sheet music. The Grinnell Brothers Piano Company was known for its high-quality instruments, innovative designs, and generous financing options. The company survived the Great Depression and World War II, but faced increasing competition from foreign and domestic manufacturers in the post-war era. The company ceased production in 1960 and closed its doors in 1981 .

Where to find the serial number of your Grinnell Brothers piano?

The serial number of your Grinnell Brothers piano is a five or six digit number that can be found in different locations depending on the type and model of your piano. Here are some common places to look for the serial number:

  • On the cast iron plate near the tuning pins, as you face the keys. Look to the right or to the left.

  • On the capo d'astro bar, which is a metal bar that runs across the strings near the tuning pins.

  • On the soundboard, which is the wooden board that supports the strings and amplifies the sound.

  • On a metal plate underneath the top lid, near the strings and soundboard.

  • On the back of the keyslip, which is the long wooden ledge that runs along the front of the keys.

  • On the front of the action frame, which is the wooden frame that holds the hammers and dampers.

  • On one or both of the cheek blocks, which are the wooden blocks that support the keyboard on either side.

  • On the back of the piano, near the top of the wood frame.

You may need to remove some parts of your piano, such as the music desk or the keyslip, to access some of these locations. You may also need to clean out any dust or dirt from your piano's plate or soundboard before you can see the serial number clearly. If you have trouble finding or reading your serial number, you can watch this video for more tips and examples.

How to interpret the serial number of your Grinnell Brothers piano?

The serial number of your Grinnell Brothers piano can tell you when your piano was made and what model it is. To find out the year of manufacture of your piano, you can use this table that lists the serial numbers and corresponding years for Grinnell Brothers pianos from 1902 to 1960. For example, if your serial number is 34567, your piano was made in 1927. If your serial number is higher than 58890, your piano was made after 1960 and may not be a genuine Grinnell Brothers piano.

To find out what model your piano is, you can compare your serial number with other information about your piano, such as its size, shape, style, color, finish, and features. You can also look for any labels or logos on your piano that indicate its brand name or model name. Some common models of Grinnell Brothers pianos are:

  • The Whitney Piano: A line of affordable uprights and grands that were popular in schools and homes.

  • The Fischer Piano: A line of high-end uprights and grands that were known for their rich tone and elegant design.

  • The Howard Piano: A line of mid-range uprights and grands that were designed for durability and performance.

  • The Grinnell Piano: The flagship line of uprights and grands that featured the best materials and craftsmanship of the company.

  • The Grinnell Player Piano: A line of player pianos that used rolls of perforated paper to play music automatically.

You can also consult a piano expert or appraiser to help you identify and evaluate your piano. They can provide you with more information about your piano's history, condition, quality, and value.


A Grinnell Brothers piano is a valuable and historical instrument that deserves to be preserved and appreciated. By looking up its serial number, you can learn more about its age and history, as well as its model and features. You can also use this information to estimate its worth and decide how to care for it. If you own a Grinnell Brothers piano, you own a piece of American musical heritage.


  • [Piano Serial Numbers Search - Find the Age & History of Your Piano]

  • [Grinnell Brothers Grand and Baby Grand Pianos - Sweeney Piano]

  • [Piano Serial Number Locations Video]

  • [Grinnell Brothers Piano Serial Numbers Table]


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