To be completely honest, old circulated silver is most often (80%) of the time just melt value(see my post in your other thread). What you need to pay attention to is mintages. Lower mintages in lower grade may just have a premium to them. That said , neither of the dimes are, both are common. On the Merc, I go by how much feathering is on the wing, yours is about XF40/45 maybe, reverse looks clean. The Roosie would go @ EF30 tops, but seems environmentally damaged, further lowering value. The nickels, 43P is The most common of all 11 dates/mintmarks, the 44D is a smaller mintage and for me at least, harder to get. Both are worn to G3-8 condition, melt value.