I wonder where it was from?

A dead Guillemot washed up on the beach. There didn't seem to be a smaller, numbered ring on the other leg, and I haven't been able to find the ring type online. At least not so far. 
 
UPDATE:
A prompt response from the BTO - sadly it seemed this was a first winter bird - it was ringed by Isle Of May Bird Observatory as age nestling, sex unknown on 24-Jun-2017 11:00:00 at Isle of May, Fife, UK

It was found 257 days after it was ringed, 43 km from the ringing site, direction SW.