Nice sheep for sure. Good and heavy on the curls. In the parks here, they get as large as 3" across the worn-off ends when broomed off at eye height. some sheep do this, while others do not. It depends on the curl and if the sheep thinks it's blocking his eye sight - or not.
I'm not sure, as I've never studied nor guided for sheep, but that one looks maybe 9 or 10 years old by the annuli?