Enter the serial number marked on your Wheatstone instrument — usually on the valve casing, bell or receiver.
On Wheatstone concertinas the number is stamped on the right-hand end plate or on an internal reed-pan label. English and Duet models and Anglo models ran partly separate ranges in the 20th century — identify the system first.
The archive currently covers 3 series and 60 dating ranges from 1830 to 1974, compiled from published maker records and reference charts. Coverage grows as new tables are verified.
On Wheatstone concertinas the number is stamped on the right-hand end plate or on an internal reed-pan label. English and Duet models and Anglo models ran partly separate ranges in the 20th century — identify the system first. The exact spot varies by era and instrument type — the serial number guide walks through the common locations.
Recheck the characters exactly as marked, including any letters and leading zeros. Letter-prefixed numbers often belong to student or non-domestic lines that cannot be dated from the number. Some production periods may simply not be covered yet.