Antique Tea Boxes

These two tea boxes are treasures that were acquired years ago. The larger tea box, on the bottom, held choicest Hoo Chow, a gunpowder tea from China. Gunpowder tea is a green tea that is rolled into small pellets that gives it the appearance of gunpowder. Hoo Chow must be a term no longer used, as it does not come up in an Internet search. Has anyone heard of Hoo Chow?
The smaller box is for Tulip Japan Tea. The box reads Choice Young Leaf Pan Fried. 

Inside the box, on the reverse side of the lid is this beautiful artwork depicting Japanese women plucking the tea leaves in the garden with Mt. Fuji in the background. Because it is on the inside of the box and not exposed to sunlight, the colors remain vibrant.