Hi Oiman, the type V, Scott #24 was printed from 5 different plates (5, 7, 8, 9, 10), and was printed with 6 different dies (the impressions on the stamps are referred to as reliefs). The plates were arranged in 2 groups of 100, left side of the plate and right side. Each side was printed in 10 rows of 10 stamps.
The rows were laid out like this: relief A (top row), relief B (2nd row) and so forth.
After the 6th row (relief F), the bottom 4 rows were laid out with reliefs C, D, E and F.
The cracks you're referring to are referred to as side scratches. They are found on all reliefs B, C and D on each plate, with the exception of some of Plate 5.
So, the stamp you're looking at is a "C" relief, and it would have to be plated to identify the actual plate and whether left or right side. Again, all "B", "C" and "D" reliefs have these side scratches, unless they're from specific positions on Plate 5 and these stamps would be Type Va.
Many different references to this, and the most useful is Mortimer Neinken's "The United States One Cent Stamp of 1851-1861". That can be found, I think, on several different sites: USPCS, StampSmarter and others.
Easier though and online is Richard Doporto's site:
www.slingshotvenus.com/Frank...chv_Main.htmlHope this is helpful! Ray