Your oldest non-copper non-silver coin?

What is the oldest coin you own that is neither copper nor silver?  

For purposes of this discussion, bronze counts as copper, and billon counts as silver.  Brass and copper-nickel, on the other hand, are acceptable.

Mine is an imperial Chinese cash from the Qianlong Emperor's reign, 1736-1796:
https://en.numista.com/catalogue/pieces1133.html

 Not sure on this one i have about 5 to id but Malay peninsula tin

 cast tin thinking around the turn of the century
            yours daryl

Edit dont think in catalog all help welcome thank you

1 Mon from 1784-87 of the Japanese province Sendai made out of cast iron.
It is still in customs at Frankfurt am Main airport but it should get to me by tomorrow or the day after  

P.S.: shouldn't billon be counted as copper becasue it is mostly made out of it   

I think this is the one in my collection.

A lead coin from Southern India which circulated in 1st Century BC.



2 Karshapana - King Chutukulananda (Ananda Dynasty)

Belgium zinc 5 centime coin from 1916.

https://en.numista.com/catalogue/pieces515.html

China empire cash coin (brass) not sure of the actual year.

https://en.numista.com/catalogue/pieces31487.html

Verweis : sujit_kumarI think this is the one in my collection.

A lead coin from Southern India which circulated in 1st Century BC.



2 Karshapana - King Chutukulananda (Ananda Dynasty)

1st Century BC?    We may have a winner!

I forgot my other Japanese Mon    and can go a good hundred years further back
EDIT: it also doesn't look like cast copper or bronze in the little hole at the side but I could be wrong

1 Mon - Japan - [1636-1656]

ALLRED1950:
Can you share all images (obv,rev) of the 5 Malay coins? I might be able to help. ;)