That box must be quite small !! I am pretty sure I am correct on the approx. date !! Could even be later but that is close !! Since I used acrylics and oils I never got into it but many were !! There was a surge in anything oriental in the 70`s including decorating,, ( I did decorate a bedroom in that style ) and many items like your paint pot were sold here and I am assuming in your country too !! I think I do still have one of the brushes, but haven`t looked in years !! The pot has a glazed foot and shows no age to speak of !! You only used a limited palette with oriental painting so colors were sold similar to yours in individual pots !! Not like oils or acrylics where you can buy a full palette !!
