Silver plated copper wound or silver plated copper alloy wound strings are the strings of choice for Selmer style guitar. This material gives the right tone and indeed, was the standard wrap material for acoustic steel guitar strings until the introduction of bronze in the early 1960's.
The most popular strings for Selmer style guitar are Argentine (10 - 45 and 11 - 46 gauge) in ball end and loop end. I stock full sets of six and single strings for spares.
Dear customer, due to the outbreak of COVID-19 I am temporarily suspending string sales as I have to take the parcels to the Post Office which is very small, and so social distancing is impossible. I apologise for this inconvenience and will recommence string sales as soon as it is safe for me to do so.
John Le Voi