The stamps were printed in the usual sheet arrangement of 100, ten rows of ten. The black portion was from line engraved plates, but the red and lavender (or green) portions were doubtless printed on the sheets by lithography previous to the impression of the main design of the stamp in black. There are four marginal imprints reading AMERICAN BANK NOTE CO. OTTAWA in Roman capitals 1/2 mm. high, the inscription being about 29 mm. long, (see illustration number 113 on Plate X). They are placed above the third and eighth stamps of the top row and beneath the corresponding stamps of the bottom row. A plate number, in hair line figures about 4 mm. high, is placed over the division between the fifth and sixth stamps of the top row, and higher up than the imprints. Plates 1, 2, 3 and 5 are known, but we have been unable to find plate 4 recorded, though it would be presumed to exist. All four known plates come with the lavender sea, and probably all four were used with the light green and dark green seas, although we have only been able to find record of plate 1 with the former and plate 2 with the latter.[173] [173] =Ewen's Weekly Stamp News=, II: 122. Mr. Ewen, in his exhaustive article on these stamps,[174] notes an apparent retouching of one of the plates. He says:--"Readers will have noted that the stamps are each surrounded by what appears to be a rope. On the sheet of plate 3 before us, the outer edge of this rope on the stamps at the end of each row (right hand side of each sheet) has worn away and has been replaced by a straight line engraved on the plate, except on stamp No. 80, which still shows the very defective nature of the rope." Much space is also given to a description of minor varieties in the red portions of the stamp--omission of islands, extra islands, peninsulas instead of islands, etc., etc. The chief variety, however, occurs in the two dots representing two islands in mid-Pacific: in the normal stamps these two lie one above and one below the "equator", if properly placed; in the variety, which is the sixth stamp in the fifth row (No. 46 in the sheet) both islands lie horizontally just below the equator. [174] =Ewen's Weekly Stamp News=, II: 122. A further variety is the stamp in imperforate condition, of which we are able to illustrate a block of four from the Worthington collection as number 113 on Plate X. This occurs with the bluish, the pale green and the deep green oceans.