what is it worth?

It seems to be Victorian.

My sister found this fossil/rock. Any ideas what this came from? Could it have any value?

I have this buckle that belonged to my father. He was murdered in 1988, so I know it's at least that old. Any information on the authenticity or the value of it would be appreciated.

So far, being fairly new to this hobby, I have found quite a few pennies. Most are the 1982+ zinc-core copper-plated pennies, which I assume to generally have little value beyond their face value. I was wondering about the older brass pennies, up to 1982. I know that pennies went to being...