I cannot find anything to ID the first flare gun.
I found the following on the second flare gun on another board: "Your signal pistol is a 1 inch, No2 Mk5. It was made in WW2 by a company named I.L. Berridge & Co, who were a commercial knitting machine manufacturer. They are no longer in business.
Berridge made over 200,000 examples of this particular pattern pistol during the war. It is a classic example of simplicity of design and manufacture."
The pinfire revolver is a typical example of the type, turned out in large numbers by many European manufacturers from the 1850s up until WWI. Few are marked to identify the maker but it should have proof marks which would show the country.