This cup is in excellent condition - the glaze is lovely and it's well made. There is one tiny part on the rim where the clay isn't perfect, but it's original and the glaze is intact over it. On the base there's one small line in the glaze but it doesn't appear to extend further into the body than that and isn't visible on the inside.
This is a very nice cup from this period.
As with all antique porcelain from this period, this is handmade and wood-fired. Please expect some character as is normal for such antique cups.