Have done a google search,came across this retailer in Ireland
http://www.mcneelamusic.com/claddagh-concertina/
Under description -
'This is a quality Concertina, it’s perfect for the advancing player or a professional.
This Concertina was formerly known as the Claremont Concertina, however it is now marketed in Ireland as the Claddagh Concertina.This Concertina is made to the highest of standards by AC Norman in England, markers for over 40 years.'
Is that helpful Moira?