Not sure how old this is, but my Dad is a long time military collector and it came from him about 40 years ago. No idea where he got it.
Could have been my Grandfathers form WW2 for all I know. The item "Vtg Davis Emergency Equipment Company First Aid Medical Kit 9x5x3 And Box" is in sale since Sunday, August 2, 2020.
This item is in the category "Collectibles\Militaria\Surplus\Personal, Field Gear\First Aid, Medic Gear". The seller is "mtstorageauctions_dot_com" and is located in Belgrade, Montana. This item can be shipped to United States.