The word del. indicates that this is a printed piece,
the word del. meaning FROM or OF and is common wording on engraved, etched and printed pieces.
The water damage not bleeding any ink is another indication that this is not an original drawing.
Giovanni Francesco Barbieri (1591 - 1666), an Italian artist known for figure, allegorical painting, and frescos.
He did many pen and ink drawing studies before a painting. The drawings were later printed.
This piece has a current value of $100 to $150.00 retail.
Some sites that I recommend for selling are Varagesale.com, Ioffer.com, OfferUp.com, Ebay and letgo.com.
You can also go to invaluable.com or liveauctioneers.com and search their directory for an auction house near you and consign to them.
To finish, I will need you to click the five stars at the top of your screen and hit submit, thanks!