I'm just trying to get confirmation on this. I have all four blocks of Plate 8. Here are just the two upper blocks. They aren't a matched set, as you can see the G is slightly higher and darker on the right hand stamp.

The upper left corner block appears to have a guide dot just in front of the W of Ottawa.

While the upper right corner block appears to have a guide dot just in front of the N of No8.

Are guide dots normal in the upper left and right positions?