Piano, Organ, and Keyboard/piano info


QUESTION: my piano has no serial number that I can find.  it says: no 3. Nippon Gakki. S.K.K.  That's all.  Is there any other place that the number might be?  I'm trying to sell the piano

I brought it with me to the Caribbean and the climate has not been kind to it.  I would appreciate any info you could offer.  The piano has 6 legs. they are placed in pairs of two.

ANSWER: Hi Andre:

This sounds like a Kawai made piano.

Where to look:

1. on the steel plate near the tuning pins

2. on the steel plate on the side of one of the struts.

3. under the piano behind the keyboard area.

Let me know how you do.

The serial number is sometimes hidden under years of discoloration. Use a flashlight.

---------- FOLLOW-UP ----------

QUESTION: I still don't see a number.  There is a seal in the gold plate that says Yamaha across the top and has 3 tuning forks forming a six-point star in the center (i.e., 2 forks forming an "X" and one going straight up & down) Someone wrote "#8476" with a marker under the piano--I don't know if this means anything.  YAMAHA is also written on the steel ends of the casing that hold the keys, hammers, etc.  I can send a picture if that would help.


That number would point to 1928.

---------- FOLLOW-UP ----------

QUESTION: Might you know anything else about such a piano.  I assume it was made in Japan for a Japanese buyer (not to export). Were 6 legs common then?  Are 6 legs common now?  The seal with the tuning forks; is that common?  Is it used today?  Is that a Yamaha original? There are only 2 pedals.  Common for that time, and for a 7 foot grand piano? The bass notes are still very rich, but the upper notes have become somewhat tinny (sp?) over the years here in the Caribbean.  Are pianos made for specific climates.  Is there anything to do to care for the piano?  The house is very hot during the day when no one is at home, and is in air conditioning a few hours a day when we are at home.  Would a humidifier work???? Sorry to bombard you with questions, but finally someone who knows about this piano!!! A dealer said 1960s but the previous owner said it was much, much older.  Thanx again!


6 legs was the mark of a "player" piano. Sometimes only used for decoration.

The tuning fork logo was and is Yamaha's.

Only two pedals was a mark of a grand that was made for the Japanese market. They did not use the a sostenuto mechanism.

They claim pianos are made for a specific climate but they have yet to prove that to me, or the effectiveness. For instance, they ship pianos to the United States, but the USA has a climate difference that is huge...Florida as opposed to Arizona for instance. I think it's just the Japanese not knowing what they think they know.

Caring for the piano is fairly easy, have it tuned twice a year, have a qualified individual install a humidity control system: http://www.pianolifesaver.com, have it cleaned thoroughly and consider a string cover.

Air conditioners and humidifiers are largely ineffective when it comes to pianos.

As far as the age...there, without a real serial number we are stuck, but again, that 1928 date may be accurate. Yamaha was making pianos back then...and before.

You can go to http://www.ptg.org to see if there is a registered piano technician in your area.

Let me know how you do.

And as far as the question bombardment...that's why I'm here!  

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Ralph Onesti


I am a Registered/tested member of the Piano Technicians Guild (RPT) with 49 years of experience in all phases and levels of the acoustic piano. I will answer any questions regarding acoustic pianos only. All questions and answers are to remain public. Please to not include sensitive material! If they are marked private, I will change them to public. My answers may be of assistance to others. If privacy is an issue, please contact me through my web site: http://www.onestipiano.com Electronic keyboards, organs, and player/reproducing piano mechanisms are outside of my expertise. Anything to do with: Construction, Service, Tuning, Climate Control Systems, Piano Disc, Purchasing, Selling, Insurance Appraisal, Rebuilding, Repairs, Legal issues, Maintenance, Environmental issues, Finish issues with acoustic pianos. My full resume can be found at: http://onestipiano.com/pages/history.html You can like us on Facebook at: http://www.facebook.com/onestipianoservice


In business since 1964, Extensive Rebuilding/Repair/Service facility. A certified, tested, member of the Piano Technicians Guild, Member of the Technical Advisory Service to Attorneys. Have performed piano service on Concert Stage, Recording Studios, and in the home. Http://www.onestipiano.com. The shop's work comes from all over the world from private clients or other techncians.

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Attented Temple University, Drexel University, Philadelphia Community college all in the areas of engineering and Music. I taught a two semester course in Piano Technology and the related acoustical physics at Temple University. I have taught extensively for the Piano Technicians Guild and the Master Piano Technicians of America.

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