Their first recording dates 1946.
They did release 48 shellac 78rpm records, a hard to count amount of singles, EP's, 10"s and LP's.
Not surprising with 65 medleys in their repertoire.
Very succesfull in the Netherlands and many gigs abroad.
In the mid 60's Jaap Valkhoff became a part-time member, often replacing the ill-healthed Piet Koopmans.
After Piet died in 1971, he became full time member.
This outfit stopped in 1977. (Also the year Harry van de Velde died.)