I recently got these two labels. Never seen them before. Not sure are their the official ones or not.
It looks like their come from a label booklet.
Year: 1988, Gummed. Günter Mair's catalogue no: -GBR-C-2, rouletted, booklets with 6 sheets of 9(3x3), issued at the occasion of a Robert Burns congress at Hamilton, Ontario, Canada, 1988, light blue/white, 2**