Spend it, if it's silver plated it's insignificant in terms of melt value, if it's a silver coin; again it's insignificant in terms of melt value. I've spent many more years than I care to remember selling melt value silver, gold platinum, palladium etc, removing plate off of various metals. If you like the coin for what ever your reason and it is only your reason then to he'll with everyone, keep it. The date alone would make me Jeep it-why because I like nickels because they traveled this country. Want to keep it, then keep it and enjoy it. Just my thoughts from the unconsidered.
"War-time" nickels (1942 - 1945) are 35% silver, 56% copper, and 9% manganese. Easy to identify by the oversize mint mark on the Reverse side. Melt value nowadays is about 90 cents.