Boston, Massachusetts. Continental Bank. 1860s $1. PMG Uncirculated 61. Proof. (MA-160 G2a) Plate B. Four POCs. Printed on India paper and mounted to cardstock. American Bank Note Company. Top vignette of a man pumping water into a trough for a horse to drink. Green micro-lettered protector grille with green boarding with "ONE" all around. Oval portrait of General David Wooster at right. PMG notes "Minor repairs, stained." A rarely seen proof that we sold in 2014 for $1,410 as part of the Peter Mayer collection.