This massive Bb Bass Helicon was donated tby a Thai military bandsman to a Bangkok primary school  at its grand opening in 1939.  It was likely too big (17" Bell and 46" tall)  for the normal Thai miltary man - and certainly too big for any primary school kid, so it languished hanging on a wall in the school bandroom as a decoration for 60 years turning green!.  I heard about it through my repairer- who had previously tried to buy it himself- but I hit the time right- when the school was trying to reconstitute its school band.  The proceeds of the sale went to buy new instruments of a more appropriate size. Inscription:

The Helicon was fully restored in 1999 and now plays well - with a big beautiful sound!!   All parts appear to be original except the end of the leadpipe which was modified slightly so the mouthpiece could reach my chops!  Finished in Raw Brass.<>  This great horn has since found a new home playing in a dixieland combo in St Petersburg Florida.