(S/M#C294-102.5) Shanghai. Specimen overprints, serial numbers and punch cancels. This highly important lot marks the first time we have handled this denomination in specimen form with only proofs being known to us prior. A larger format size than the lesser denominations with a vignette of buildings at right and large guilloche, left. Just a sheet fold in the upper margin is all we can see when looking through the PMG holder.PMG Choice About Uncirculated 58 EPQ.