Brass Mortar and Pestle

I am trying to get any information about this brass mortar and pestle.
Hi. I came across this antique brass mortar and pestle and was wondering if anyone here could figure out the age and perhaps worth.

Height: 4.5"
Top Mortar Diameter: 4.5"
Bottom Mortar Diameter: 3.5'
Weight: 8 lbs?

Pestle: 8" long
End of Pestle Diater: 1.5"
Thank you!