Aproximate size is 8 mm x 7.5 mm. I ordered from Krull-Smith with my AOS coupon and paid with a credit card and they brought the orchids with them to the Longwood Gardens show. They are available on their website for $15 each and I should have bought more!
A very nice flower you got. I just like the influence of fairrieanum. The fairrieanums are my favourite. I bought a flask of fairrieanum seedlings a year ago and cannot wait for them to start flowering.