Will transcription - symbol for the seal

[Jill]

I have ordered some wills from WSRO to keep me occupied while on sick leave and have begun transcribing them (easiest first!) and while the handwriting is beautifully clear I was wondering how to portray the symbol for the seal. On this one it's a circle enclosing a £s.

[kiterunner]

As an @ sign?

[Jill]

Though there might be a convention, found a wingding but it won't copy & paste here, so I'll go with your suggestion for now, thanks :)