Enter the serial number marked on your Dallapè instrument — usually on the valve casing, bell or receiver.
Dallapè has no published serial table; the numbering looks continuous, but only isolated reported points exist (marked unofficial). Feature dating plus these points is the honest best effort.
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.