There is nothing I like more than having multiple "old" coins come out of one hole. This spill must have happened in 1941 as the Jefferson nickle is the newest coin 1941 (dang) and is in great shape. The Buff has no date, the wheat is a 1940, & the Merc is a 1937.
I pay attention to the multiple tones now, even tho often trash I try to dig them as much as possible now just might be something really good like you got !