Q.China doll Seeds
I have planted some China Doll seeds and think I have one starting to sprout. Where can I find a picture of a new seedling to be sure I am actually growing a china doll?

Starting from seed is quite difficult and with that said, my research did not turn up any images to share with you.
If you started your seeds will sterile medium, I would continue to care for what may be a new plant. Time will tell if the seedlings takes on the leaf characteristics of the intended plant.
https://www.gardeningknowhow.com/houseplants/china-doll/china-doll-plant-propagation.htm