The location of LBP is well-identified by the marina and the airport. Various features have changed within the area covered by the camera frame. Unfortunately, those markers re fairly ambiguous in LBP due to distance, haze, and angle of view.
These changing features include RUBY'S DINDER on end of the SEAL BEACH PIER, the phased rebuild of the docking in the ALAMITOS MARINA, and the shuttering/demolition of the SEAPORT MARINA HOTEL and the redevelopment of the land it stood on. In addition, the asphalt in the marina parking areas underwent resurfacing, also in stages over several years.
A summary of the datining of LBP will follow but for now it seems that the most sure bookend we have is the not-after-bookend which is the date on which Q posted LBP.
Apr 18 2019 14:47:48 (EST)
Closely related is the date on which SARA CARTER posted her article regarding the Mueller Reporter. Q included a link to her tweet that, in turn, linked to her article.
Tweet was timestamped Apr 18, 2019 and the article was posted the same day. The contents of that article are well-worth considering when thinking about 1st & 10 on the 40.
Depending on what the viewer can discern with the naked eye while scrutinizing the details of LBP, any one of the markers listed above could date the pic, however, they all appear within the frames and the dates associated with each feature must reconcile with all of the others.
Moar upcoming.