It is rare but NOT unobtainable. Ebay has 000,s of punters who do their search on 1905 for the 2/6 1/- and even 2/-. I haven't got any of the trio above but should I stumble on a decent one it will be luck. I would rather get a quality 1903 2/6-. If you are collecting 2/6's nice pieces 1887 YH and earlier seem harder than catalogue prices suggest.