I have two prints sold in 1950s that appear like a water color and are matching set. The man looks to be an Asian Emperor and the other is a woman in a gown looking like an Empress. The are a matching pair with a mountain background and flower blossoms. My grandmother purchased them in the 1950s from a furniture store. Each has the Borin round seal stamped on back and #1206. Can you tell me more about them?