Hi. I was lucky enough to purchase a Besson A Class Academy 408 Bb/F Trombone on ebay a couple of weeks ago. I have been trying to locate the year it was made but havent had any luck. The Trombone itself is in mint condition and seems bullet-proof, good job really as it was originally bought by the military and used by them up until recently. The serial number is 413552 and judging by the "coffin style" case I would gestimate it was made somewhere near the late 60's. I bought the Trombone as a spare should my Bass Trombone "go down" and although it is a small bore instrument I think I can purchase a mouthpiece adaptor so my Stork 1S can be used. Does anyone have any info they can share about this particular instrument or comments about it doubling up as a Bass Trombone substitute when absolutely needed? Many thanks in advance.