Hi Ryan,
180 years...probably not
Check on the ends of the bottom hang bar. If they unscrew as plastic caps it was probably made in the 1960's or 70's. There are thousands of these out there if it was.
also check the scroll stiffners at the top (the additional fabric bands) check to see if sewed or on with mechanical fasteners. Recent scrolls (less than 40 years) are glued down to the body.
Also check the hardware at the top that holds the hang cord. Old ones are screwed on, newer ones have pound in prongs, (less then 40 years) or the cord is glued into the fabric as it rolls over the top hang bar.
Picture.. is it paint on silk or paint on rice/silkspan paper.
Don't let yellowing fool you. I have some ancient looking scrolls that were made in the 60's and 70's.
Beautiful scroll and flower. Congrats on the winning bid.
Al