May i see more pictures of the leaves? It appears it is ya li Ya Li aka yali pear
Notice the indention in the pear, serration and shape of leaves, partial russeting, quick production, firm flesh when ripe, shape of pears, notice the stem is large next to the fruit but skinny above that. It all fits ya li. Ya li leaves are always wavy like these shown. That is a very unique set of characteristics.
