i had a simular exsperence i got a polished chrome yale 5 pin then 4 days later from a totaly different supplyer i got a polished chrome thumb turn euro cylinder ( cant remember what make ) but both key ways were Y1 type
i got the cylinders for a job to re-key them both to one key on looking at both sets of keys the keys were identical and i mean an exsact match appart from the cuts on the yale key was slightly deeper
weired but n e ways both cylinders keyed alike and fitted job done lol
not a bad earner
