Vintage Set of 7 Sabin Espresso Cups & 4 Saucers - Crest-O-Gold Warranted 22k

Vintage Set of 7 Espresso Cups & 4 Saucers - Crest-O-Gold Warranted 22k Gold leaf China Four of the cups have the picture outside the cup Three of the cups have the picture inside the cup One cup has a little staining inside. Some Poshmark listings say these cups are teacups, but I think they are espresso cups. This set is from my 87 year old mom's collection purchased in Pennsylvania. I'm surprised that this collection is selling for so little on Poshmark. Thank you for looking!