1889 Share Cert in Broken hill mining company. Who has more info????

[Bigfella]

Love to se if anyone can shed some light on this OP shop find in a secrete compartment in a box of set squares etc.

 

[herkyderky]

I've seen similar sell as historical document memorabilia at auction before
a google search came up with this for sale - https://numistoria.com/en/australia/18424-broken-hill-south-silver-mining-co.html