This jogged my memory this morning. After HomebrewCon we stopped in Corning NY and toured the Corning Glass Museum, which was absolutely fabulous. In the history of glass section I learned that many antique glass pieces have a green color due to impurities in the local sand, often copper or iron.
I didn't know CRISA, google said it is a Mexican glass manufacturer. Hey, I have one, the first I bought, and it is in use right now.
Leaded glass is clear, it is known as lead Crystal (a misnomer). The current thinking is that it is fine for drinking, but not long term storage.
The CRISA carboy would probably fall under the term Aqua glass in the link below. Old guys like me can remember that Coke bottles and Ball jars had that color at one time. Good for storage I would think.
You might do more searching online to see if it is lead free. You might look for a group of antique glass collecters, and see what they say. Get it tested?
https://sha.org/bottle/colors.htm#Greens%20&%20Blue-greensOne last thought. My sister collects depression ware glass. She has mom's and has added pieces she comes across. I found out today that certain color was due to uranium oxide.