Note: Rather than set out again the various theories attached to this emission from Perkins, Bacon & Co., we refer readers of this catalogue to the article by L.N. Williams, published in Stamp Collecting during February of 1979, Vol. 132, Nos. 11 to 13 (3401-3). The emissions are in black and have a brownish tinge, they are on Anchor watermarked paper which is white, they usually bear traces of an obliteration which resembles the Cape isosceles triangle, and some tend to be underinked in the left corner.