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What Year Was My Boston Piano Made? (Serial Number Lookup + Guide)
DIRECT ANSWER
To find the year your Boston piano was made, you must use the Boston-branded Piano Company serial number system, which is designed by Steinway & Sons and manufactured by Kawai.
Most Boston pianos can be dated to a specific year using their serial number. However, accuracy can vary slightly depending on:
- production era (early launch period vs modern production)
- manufacturing partner (primarily Kawai Musical Instruments factories)
Boston pianos are generally consistent and reliable for serial number dating, generally consistent, though structured differently from legacy American systems like Baldwin.
HOW BOSTON SERIAL NUMBERS WORK
Boston pianos use a structured serial numbering system tied to their manufacturing process.
In most cases:
- serial numbers increase sequentially over time
- numbers correspond to production year ranges
- the system applies across both grand and upright models
However:
- Boston pianos are manufactured by Kawai under contract
- serial numbering reflects Boston branding, not Kawai’s internal serial system
- some variation may occur depending on factory and production batch
This means:
- your serial number can usually be matched to a specific manufacturing year
- it will NOT encode model information or detailed specifications
WHERE IS THE SERIAL NUMBER ON A BOSTON?
Boston serial numbers are stamped into the cast iron plate inside the piano.
BOSTON GRAND PIANOS
- lift the lid and look inside the piano
- locate the serial number stamped on the plate near the tuning pins or bass strings
- it is typically clearly visible without disassembly
BOSTON UPRIGHT PIANOS
- open the top lid or front panel
- look inside toward the cast iron plate
- the serial number is stamped onto the metal frame
- a flashlight may be required
Important identification note:
- The serial number is always stamped into the metal plate. Do not use model numbers (e.g., GP-178, UP-118) as these are not serial identifiers.
WHAT YEAR IS MY BOSTON PIANO? (WHAT TO EXPECT)
After entering your serial number, you can typically determine:
- the manufacturing year of your Boston piano
- its general production era
- its position within Boston’s overall production timeline
However, the serial number may not provide:
- exact production date (day or month)
- specific factory location in all cases
- detailed model configuration or features
This is because Boston serial numbers track production order rather than encoding detailed specifications.
BOSTON PIANO SERIAL NUMBER LOOKUP TOOL
Important note for Boston pianos:
- Select “Boston” in the manufacturer list
- Do NOT select Steinway or Kawai
COMMON BOSTON SERIAL NUMBER MISTAKES
Common issues when identifying Boston piano age include:
- confusing the model number (GP, UP series) with the serial number
- entering numbers from paperwork instead of the stamped plate
- misreading digits due to glare on the metal plate
If your result seems incorrect, verify the number directly on the cast iron plate inside the piano.
BOSTON PIANO HISTORY
The Boston line was introduced in 1992 by Steinway & Sons as a mid-tier brand positioned between Steinway and entry-level instruments.
Boston pianos are designed by Steinway but manufactured by Kawai Musical Instruments, combining Steinway design principles with Kawai’s large-scale production capabilities.
Key characteristics of Boston pianos include:
- wider tail design on grand pianos for increased soundboard area
- scaling and engineering influenced by Steinway design philosophy
- consistent build quality due to centralized manufacturing
Production has remained relatively standardized compared to older American brands, which makes Boston pianos:
- easier to date than fragmented legacy systems
- generally consistent in serial interpretation across models and years
Our database includes Boston piano serial numbers across all production years, covering both grand and upright models.
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