Beale pianos typically have : a model/frame number and a serial number. You need the serial number (usually 4–6 digits).
Beale pianos, particularly the classic Australian models manufactured between , often hide their serial numbers in specific locations: beale piano serial number lookup
"The serial number. It’s gone. There’s fresh scratch marks over the usual stamping spot. Someone went at this with a file." Beale Piano Serial Number Lookup two numbers Beale