Hi there!
I've got 378 grams of junk silver that I am willing to exchange for maybe 2-3 coins of equal value. I calculated the weights of each coin with their purity and have landed on 216 grams of PURE silver, placing it around the €175 ($194) mark. They are mostly English shillings/florins from the 20's,30's and 40's, and some foreign coins as well.
Here are some images:
Thanks !