Can you identify this. Powder Measure & Pricker.

A reader sent these images to me in the hope that I could identify this powder measure. What is unknown is the reason for the channel on the measure, was it meant to hold something? A gun tool for instance? It has a file cut which has gone right through the measure making a hole. Your thoughts please, could this be a marker for a lower measure of gunpowder? Or is the hole a mistake, filed too far? The silver band is apparently fixed in place & will not move.
Can anyone date this measure?
Keith.

The file cut and hole is just to the right of the silver band at top.

Here you can see the channel that extends under the silver band.

 

An enlarged image showing the file cut and hole.

Silver band is level with the cut-away end of the measure.

Showing part of the pricker that is tied to the measure with cordage.

Can you identify these containers?

Does anyone know what these containers were used for? I posted a similar container not too long ago and now these have come to light via a friend. A more likely use than I first thought could be containers for gunpowder? Any ideas on when these were made or in use? Where were they made?

Adam's Gunpowder Canister. Can you identify it?

Can you identify this gunpowder canister and lock. A date would be great. I don't know if this is a military container, or a civilian container. Any help would be greatly appreciated.

This is the lock that is on the container.