A number of codes following the serial number are used to signify additional information.
Most of them indicate that the ledger shows that the instrument was made by another maker
and/or for another dealer,
and so the serial number is probably not a Wheatstone number. (Most of these makers are
profiled in "Minor Historic Concertina
Makers and Dealers", by Wes Williams.)
Do you know another resource that we should include? Tell us about it.
Serial numbers transcribed
from Wheatstone & Co.
factory ledger C1049
at the Horniman Museum
Links to related documents