Watch List notes:

LIANG: Anonymous, 523-557, iron cash (2.86g), H-10.18, wu zhu, four lines radiating from the corners on reverse, VF-EF. From the year 523 onwards the government of the Liang dynasty decided to cast iron Wu Zhu cash coins due to the fact that iron was both relatively easy and not expensive to acquire in what is today Sichuan. The iron cash coins issued by the Liang dynasty are quite distinctive from other iron cash coins as they have 4 lines that radiate outwards from each corner of the square center hole which is why they're referred to as "four corner coins" (sì chu qián). As it became quite common for the people to cast iron cash coins privately based on these government issues it wasn't long before their quantities increased drastically. By 535, the traders in Sichuan were complaining of the trouble of stringing together such a number of iron coins, and of the large number of carts needed to transport them.

Estimate: 50-75 USD