Although I've put the year of manufacture as 1960s, I'm taking a guess here. The clarinet belonged to my late father, and I know had had it for many years.
Vintage Lafleur Clarinet imported by boosey and hawkes
Lafleur Clarinet imported by boosey and hawkes London vintage
Lafleur Trumpet (Imported by Boosey & Hawkes) Untested - E44
Lafleur Clarinet With Hard Case And A Tune A Day For Clarinet Book 1
