CANADA. Lot of 3. Canadian Bank of Commerce. 20 Dollars, 1917-35. CH#75-16-02-08FP, CH#75-16-02-08BP & CH#75-18-10P. Front & Back Proofs. 3 proofs in lot. A trio of uniface Canadian Bank of Commerce proofs. All three are stamped on the reverse from ABNC. Really interesting proofs in uncirculated condition.