

First trip, first silver :)
Today I went on my first real metal detecting trip after receiving a NoktaFindXpro for my birthday. A few days ago I did spend an hour or two testing it in my garden but I only received my first permission to hunt somewhere else today.
I found a bunch of trash but also stumbled upon this amazing find after only 30 minutes of searching. Safe to say I can't wait to head out again :)
It seems to be a Denier, a small silver coin minted in 1236 - 1261, Brussels.
Very happy to find this on my first trip, I expected many months of searching to find something like this.
Anything I should pay attention to to conserve it?
I did come across a lot of 'beeps' without a VDI, just trash. I'm aware of my machine's limitations but I literally had to dig a hole every 2 steps. Maybe I have to turn down the sensitivity a bit but I'm afraid to miss another coin like this. So... Just dig everything, I guess?