There’s an advert for a boxwood keyless Olwell for sale in Clare, but I can’t see if this is an old advert or if it is a new current advert as there is no date, except 18th August at the bottom of the page which indicates it is relevant? just over 12.358 Swedish crowns which is cheap as the crown is very strong just now against the euro
"Patrick Olwell keyless boxwood flute. Pratten design. Perfect condition. Sterling silver rings and slide. Beautiful to hear, beautiful to see. Includes hard case and shipping with guarantee return accepted if not happy with the instrument. Price is €1,500. "
http://www.citylocal.ie/cities/Clare/freeadvert_Olwell_keyless_boxwood_flute_and_Morse_anglo_concertina_10788.html