>>16174558 OB
>While four sauces captured cranes over buildings on southside of Westminster Bridge, no cranes showed there in the Q pics.
Possible bookend for no earlier than.
The earliest that these cranes appeared.
Goal; find pictorial evidence, or related evidence, to establish the earliest date before 22-DEC-2013-T on which cranes appeared.
Or - the latest date before 22-DEC-2013-T on which cranes first appeared.
As it stands we have a gap in pictorial evidence between SV-JUN-2012-P (no cranes) and 22-DEC-2013-T (cranes). That interval is about 6 months.
Can we narrow this down?