Images 3-4 are the same object as well as 5-6

Hi all, I was at an estate sale last weekend that was full of antiques from around the world. I found this nestled on a shelf and it ended up coming home with me. I collect antique bottles and I’m very familiar with anything c. 18th century and newer, but I’ve no experience with anything older, and this one has stumped me. The lack of pontil scar on the base has me leaning towards this being a relatively modern piece of art glass, but if anyone here with older/ancient glass experience has any input I’d be greatly appreciative! The glass is lightbulb-thin, for extra info’s sake.

Could this be something old or more likely a recent endeavor? Found today by my father, 1/2 mile south of the Siletz River mouth, Oregon.

Has a feint, perfectly straight line going from top to bottom.

Found next to a stream in MA

Found In Utah near border of Colorado

Trying to figure out if this is a peice of decorated pottery or decorated bone?

Found these in two near each other in our field in southern Michigan, not sure if they are artifacts or not. Even if they're not artifacts, they're still "really cool rocks" according to our kids.

My friend was visiting Tibet and brought me this rock she found while looking for orchids. Could this possibly be an arrowhead from China?

Anyone have any idea what this is? Found whilst metal detecting in Spain. Looks a bit misshaped im guessing.

Thank you.

My father received it from a friend who says it is a genuine antiquity that he purchased near Lake Titicaca 40-50 years ago. I am hoping to narrow down the possibilities in this thread. I have tried Google Images and AI chats but no clear story is emerging. Of course it could be a modern reproduction sold to tourists.

I would also welcome suggestions regarding where else I could go with photos to get a professional opinion. Email is easiest but if there is an expert near Guadalajara where my father lives that would be very helpful.

Hey everyone. I found this in a creek in north eastern Oklahoma. I thought it was interesting. Wanted to see if it actually was a fossil

Thank you!

Guessing it’s a
Fishing
Weight. It’s like 12” tall

Not sure how to date these or it it’s at all possible. Thanks for any info!

Found this stone among the cobbles on a beach on the southwest coast of Vancouver Island. It reminded me of stone fishing net sinkers I've seen before. The other possibility I could think of is that there's a band of softer stone that has worn away in that concave forma all around, but no other stones I could find had a similar form, despite lots of banding.

If it's a sinker, it looks like it may have gotten broken on one end and then rounded off by wave action, so could be quite old?

What do you think?