TRINIDAD & TOBAGO 1969 (VARIETY) QUEEN ELIZABETH II PROFILE ON PERFORATED INTERLEAVING PAPER
Queen Elizabeth II's profile in silver on brown perforated interleaving paper. Very unusual and scarce. Fine.
Note: silver was applied as a separate process after printing of the stamps and before perforating. It's likely interleaving paper, used to prevent adhesion of the printed sheets, went through the press and was then perforated by mistake