Help Identifying Marks on my Double Gourd Blue & White Vases

by Bill
(Ocala, FL)

Hi. I won these in a junk auction, a pair of blue & white vases, on the bottom are some what I assume are Chinese markings. I have spent literally hours trying to place this. I only found one duplicate vase online at an auction site that offered nothing more than late 19th early 20th century. Anyway, any help on identifying these and a value if known would be great too. thanks!