^
Depends on the condition, for which we would need to see the obverses.
On the five cent pieces, I'm guessing from the condition of the reverse that the 1911 would be a VF (book value $8) and the 1918 would be a F (book value $3.50).
Still, they're .925 silver (0.0346 oz. ASW).
A wonderful find in the wild.