>>4724628 (ob)

That third one looks like a draw bridge being raised, as seen from above. The chevrons are the water. (canal, river)

Or, could it be multiple locks closing? Think canals along dams.

>>4725066 (lb)

POTUS is not going to tell people to buy a 5 month old issue. It has to be the Jan. 18th, 2016 one. It was probably in stores by the 10th or 11th.