Hi Guys, and thanks for the replies,
I now know an awful lot more about my box than I did before (which was pretty much nothing I must admit). Isn't the internet a marvelous thing!
Stephen, thanks for the info about JE dallas, I've had a look at it again and it is badged "Dallas 'ALL STAR TESTED' band instruments". So we know who had it made and sold it.
Geoff, you're right, the number is 389360, every part is numbered and some are more distinct than others but it's definitely a 38 at the beginning. So I suppose it was made in 1938 then? On the inside of each reedplate? is the sta