Dating cute little denim dress

Hello,
I went to an estate sale in New Jersey a few weeks back. It seems as though 80% of the labels if there is one, there is no information on. Where did this lady buy her clothes? Lol

I'm trying to date this dress...I'm thinking 70s but I'm not really sure. It snaps closed with two heavy duty snaps with an attached tie belt. It's short, the hem was done with hem tape. Its semi lined with polka dot fabric.

Can anyone help.

Thank you for your time,
Nichole

 

I think it's from the later seventies.

 

Thank you for your help!

 

Do you see any union tags or care tags as well?

 

No, no other tags.