Percussion cap...? Unknown lead coin or token...? Mystery iron...?

[Pdr206]

Found 2 of them near each other. Thought they were just end caps used in plumbing. Finally got around to cleaning one of them today, started pulling out the dirt and fabric of some kind cane with it. Looked inside and there seemed to be old gun powder...?

Took a closer look and the open end is crimped all way around and says '...US NON 30' on it.
Can not make out the letters before US. Also cant get a clear picture of the words.

Also found a coin spill in the riverbed. No idea what they are, appear to be lead coins. Elephant on one side and God only knows what language is on the back.

Also a piece of iron that is riveted together, no clue.

 

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[Pdr206]

Turns out its probably an old style 30 amp fuse end, which would explain why i found two of then. Shame.

The elephant coins are repros and used in some sort of ritual. Ill put them back. Took me forever to dig them up!

The two piece iron thing i still dont have a clue.

 

[mirage83]

Looks like a disk-brake pad to me.