The most common ligature that resembles Sh/ch is the general-purpose Latin scribal convention that variously represents er/re/ce/cr/cc and also ct/tc/te/te in older texts (14th century and sometimes early 15th century). It is also used for ci/ti in scripts where the scribe tends to not dot the "i".
It's very common. When it has an apostrophe, it usually represents "cer___", "circ____" or "circa". It is found in both Latin and vernacular texts.
The one Aga posted doesn't match as well as the one I just described because Aga's example has a downfacing tail at that end that doesn't occur on Sh/ch.
It's very common. When it has an apostrophe, it usually represents "cer___", "circ____" or "circa". It is found in both Latin and vernacular texts.
The one Aga posted doesn't match as well as the one I just described because Aga's example has a downfacing tail at that end that doesn't occur on Sh/ch.