CSA 7-L variety, 5¢ blue, position UL-31, Major Plate Scratch listed in Scott Specialized due to an article by Kevin Anderson and Trish Kaufmann in the 1Q 2019 Confederate Philatelist. Seldom seen. SCV $225. $200. 

Click to read the article at https://www.trishkaufmann.com/masonry/resources/final-brass-rules.pdf