La Confederacion Argentina. 10 Pesos, ND (185x). P-S163, CA-22s. Specimen. PMG Choice About Uncirculated 58.The handwritten note in the lower margin indicates that this note was prepared on 1 June 1855 and that it is from the fourth double plate. As such at least eight proof notes were printed. Previously Mounted, Foreign Substance, noted on holder.PMG Choice About Uncirculated 58.