You would need a 67 FS or better on the war nickel to be worth the price of slabbing. The Jefferson is clean just doesn't have any Cameo.
Unless it’s a “vanity or sentimental” slabbing, it’s not worth it. Sometimes collectors get low priced coins slabbed to go into registry sets, but you can often buy those coins for less money in the secondary market. Dealers get these common bulk graded, looking the “hits” which are PR-70 or MS-68 or higher pieces. They sell off the “losers” at prices that are often lower than the slabbing and shipping fees would be.
Both nice but not worth the cost of grading. You'd never get the grading cost back when you sell. Just put them in an airtight and tuck them away.
Neither coin is slab worthy. The nickel is basically silver melt value. From the photo the obverse appears damaged. While the proof Franklin is very nice, it's also very common in those grades. $18 in proof 65.