Golden Arrow splash page from Whiz Comics #118 (February 1950)

That quiver aim by Golden Arrow is true to target from that ambiguous vantage point.  Any ideas on what the blue editor's tick marks were for?  Color guide?  They appear on main characters and not others.

Yep! The blue lines are color guides. They appear on a LOT of golden age pages, but you can actually erase them and a lot of dealers do so. I can never decide: like...the pages look better without them, but once you erase them, you can never go back.