Author: Chris P
Date: 2010-08-02 23:25
That's from the early '70s going by this serial number list: http://www.musictrader.com/loree.html
When you mean English thumbplate conservatoire system' - is it dual system in that Bb and C can be played by both lifting off the thumbplate or by closing RH1?
Some Lorees were built as purely thumbplate system (not dual system) where there was no linkage from RH1 to the top joint Bb and C keys, but had most gadgets found on full Gillet conservatoire systems (banana key, split D#-E trill, Ab-Bb trill, G#-A trill, etc),