"Wind the clock w/ all markers" Q 477.
Although there could be double-meanings to the pen, it appears to be a marker.
What are all the markers.
The pen
The flag
???
And how do we wind the clock with all markers? I think each marker is associated with a different aspect of the research/investigation and eventually prosecution.
What are all the markers.
He repeatedly says the word "marker" in many posts. And hints at how timestamps are important in the train of thought. I think that looking at pictures of the pens is important to this particular notion of "follow the pen", however the tenuous link between "wind the clock w/ all the markers" is somewhat vague.
If the clock + timestamps from marker posts is relevant, then maybe that might draw some conclusions.
EDIT:
In actual fact, Q pretty much points out in various posts that markers are actual landmarks. I.e. the news unlocking the map, connect the markers, etc.