Bidspirit auction | Canada - Modern Errors

Canada - Modern Errors - 1979, Kluane National Park, ($2) multicolored, silver denomination and inscription omitted, block of four, full OG, NH, VF, Green Foundation certificate, C.v. $1,200, Unitrade C.v. CAD$1,600++, Est. $500-$600 , Sc. #727a