Four Stanley Thermos Flasks in carry case

Four Stanley flasks in their original case. A complete set, all glass thermos liners are intact, three of the four flasks have the original corks with th S for Stanley stamped on the end, one is a replacement cork but fits well. All original cups screw onto the flask well. Each flask has age related scuffs to the paint and decals. 
This is an unusal set as it is four flaks in a their original case, probably from the 1950's and would have perhaps been used for shooting parties, or large family picnics and day trips. The family I purchased it from had used it on their vintage boat and with their vintage cars.
The case is in fair condition with age related scuffs and surface rust to the metal locks and hinges, there is a piece of vinyl on the lid which has peeled back but is not detrimental to it's use. The handle is in good order and is leather clad which has cracked from age, there is also a patent name embosd in the leather but I am unable to make out what is says. The lock shuts but there is no key to lock it with.
Two of the flasks have a small G painted on them, not sure what it stand for, but I rather like to think it was gin!
Each flasks is 34cm tall and base diameter 10cm