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#2641582 - 05/09/17 12:52 AM Age of Yamaha U1 with letter D before serial number?  
Joined: Apr 2006
Posts: 1,595
pianobuff Offline
1000 Post Club Member
pianobuff  Offline
1000 Post Club Member

Joined: Apr 2006
Posts: 1,595
Pacific Northwest
What is the age of this piano? Serial number D1744821. I'm confused by the letter before the numbers. On a British website it said the D meant the piano was manufactured in the 60's, and has two pedals, which this particular piano does have. But then it goes on to say that having a 7 digit serial number means it was manufactured in the 1970's. When typing in just the numbers, leaving out the letter, it says the piano was made in 1974.

Thank you to anyone that can help me out with my confusion! I would like to know when this piano was truly manufactured.


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#2641593 - 05/09/17 02:47 AM Re: Age of Yamaha U1 with letter D before serial number? [Re: pianobuff]  
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joe80 Offline
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joe80  Offline
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Joined: Nov 2009
Posts: 2,694
D IS the series designation letter. So it means they'd revised the original design four times up to that point. The number that tells you the age of the piano is the 7 digit number.

#2641613 - 05/09/17 04:33 AM Re: Age of Yamaha U1 with letter D before serial number? [Re: pianobuff]  
Joined: May 2001
Posts: 10,776
Rich Galassini Online content
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Rich Galassini  Online Content
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Joined: May 2001
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Philadelphia/South Jersey
Your piano was made in 1974.


Rich Galassini
Cunningham Piano Co.
Phila, Pa.
(215) 991-0834 direct line
rich@cunninghampiano.com
Check out the Science Channel's "How Its Made" featuring our piano restoration:
http://www.cunninghampiano.com/how-its-made/
#2641734 - 05/09/17 12:32 PM Re: Age of Yamaha U1 with letter D before serial number? [Re: pianobuff]  
Joined: Apr 2006
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pianobuff Offline
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pianobuff  Offline
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Joined: Apr 2006
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Pacific Northwest
Thank you Rich and joe80!


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