The best weather reports are from the Norwegian Met Office. This is the Greater London report but click on maps and and move to your area.
https://www.yr.no/en/details/graph/2-2648110/Great Britain/England/Greater London
It was perhaps inevitable that the Germans could figure out H2S with bits recovered from shot down/crashed aircraft. H2S was also used by Coastal Command who found that the U-boats could detect the signal and then hide below the surface. I don't know how or who thought it up but by tweaking the H2S it would become invisible to the U-boats detectors but as a bonus the detectors would light up like a Christmas tree.
L48, the brake van is from a Radley kit, the other wagons are repainted and re-lettered R-T-R. London Transport engineering stock was pretty drab in all-over grey with only the brake van ends painted red.
The Bombers were also equipped with something similar to Perfectos enabling the crews to drop window when the fighters approached. This was developed when a couple of German airmen defected in an aircraft equipped with the latest German NF radar.
I've used a wooden cocktail stick to remove writing from a couple of diecast vehicles, it works very well. T-cut on a cotton bud is also effective (but make sure any residue is cleaned off thoroughly).
Part of the agreement on grouping was that the pay rates were amalgamated and were raised to the highest rate for each grade. For example if a top link driver on one company was paid 2/- a week less than a top link driver on another company he got a pay rise of that amount on grouping. In the case of the LNER the company with the highest wages was the GER.
Just been watching 'Digging for Britain'. They (despite the series title) went to the Waterloo battlefield. Apparently the dead were just left on the battlefield where they fell. leaving it to the locals to dispose of the corpses so they simply dug pits and created mass graves. These graves were unmarked and the archeologists were searching for them but all they found was empty pits. Then the researchers found that the farms in the area went over to growing sugar beet in the 1840's. To produce white sugar from beet required charcoal, specifically bone charcoal. To obtain the necessary bone they started digging up the pits....
Makes you wonder how other football clubs got their nicknames. Ipswich Town for example are known as the Tractor boys. Although the town had an industrial history (Ransomes) they did not make tractors.