Old Victorian Gas Lamp Valve

So one Saturday morning I decided to go metal detecting in the woods by my house. At first, I kept digging aluminum, but then I got an interesting signal. I was about to dig it but I heard thunder, and it started to pour rain. I quickly grabbed a stick to mark the find and I ran to the car. I was deep in the woods, and everything was overgrown. I waited a few minutes in the car, and then I went back to the spot. I kept digging and digging, but then, about 8 inches down, my shovel hit something. I rubbed it with my glove, and it had a green color. I could also see that it was brass. I dug a huge hole around it, lifted it out, and I stared. I had no clue what it was. I detected a few feet around the area, just to see if there was more stuff. All I found were nails and twisted pieces of metal. I went to the car, drove home, and researched the item. It was an 1800s Victorian gas lamp valve! I have found a lot of cool things in the past, but this find was probably the coolest.