Quote:
yes I do have a Scott Specialized catalog
That is excellent. I can't give you page numbers because that varies by year of publication, but there are two sections of interest. The first is near the beginning of the introduction where it describes and illustrates the term "Plate." You want to read and understand all of that section all the way through "Plate Arrangement" stopping just before Booklet stamps. Don't just read it once over lightly, really dig into it to understand it visually. You are being given the language that will help you analyze a process.
When you've got a handle on that, skip over a few pages to the section on "Printing." At least read about "engraving" and see if you can visualize it from what you read earlier. [For honor points you might want to try reading about one or two of the other printing methods to see if you can sense how they differ from engraving.]
Armed with this basic knowledge you are ready to tackle some of the literature on relief breaks and printing anomalies for this 2c stamp. It gets discussed here from time to time. Here is a link to earlier discussion that references some of the most recently published studies on these relief breaks:
https://goscf.com/t/38921 br /
There are more threads too, so you might try searching the list archives on the number 220.
Let us know if you run into a snag. If after all that you still are not sure what is going on with your stamps, we can help.