Vintage Chinese Celadon Tea Cups

Lovely Chinese celadon colored ribbed porcelain tea cups in good vintage condition. I purchased these at an estate sale with other Asian antiquities. One cup has a few cracks as shown (both photos are of the same cup). I was told these are handmade and quite old. I have no other provenance to offer, unfortunately as I am not the original owner. Approximate Measurements- H- 3.75” L- 2.75” Collective Weight- 1.8 lbs