Here is another case where the Image in the Tracker Software is incorrect for the Kamargo Lodge #294 F2b. OA Images currently only shows the F2a.
You can see them both below.
The Blue Book describes them as:
F2a GRN R YEL DBR LB shape; 53×118 mm; thick arrow; 7 mm fletching; “O” in name is oval; 6 mm thick tail
F2b GRN R YEL DBR thin arrow; 5 mm fletching
Not in the Blue Book description, note that the F2a, the leftmost W tags to the border, in the F2b the K tags to the border.