I am quite confident that the pears in your pic were not 20th Century Asian pear. The stock photo @RedSun posted was not, either.
20th Century is a yellow, thin skinned pear. Your pear’s shape and color do not fit 20th century. I don’t know what common Asian pears are grown in your area. Many look quite similar. Others may be able to tell you what they were.
Here’s what my 20th century pears looked like. It’s the pic in the 2nd post of this thread.
Is this 20th Century Pear?