For the third episode of this  series dedicated to the history of Henri SELMER Paris, Douglas Pipher  tells us about the range of instruments produced from 1928 to 1931,  known as the "Large Bore".

" In 1928, Henri SELMER Paris decided to stop putting a model stamp on  their instruments. So the next range of instruments, from 1928 to 1931,  have become known as the Large Bore. This is because the bore at the top of the body, where the neck is attached, changed for the Altos, and the Altos only..."