It would be invalid, but can be sold to a collector. A pawn shop or a professional collector would be able to tell you. A bank would treat it as destroyed money, essentially making the bill worthless.
What is a 1950 one hundred dollar bill without "In God We Trust" worth?
$10
A lot bcuz a dime or nickel was worth a lot back then
a half hundred dollar bill is worth $50
At the time, it was worth one dollar.
It's worth 5 dollars.
How much is a 5 dollar bill be Werth if its made in 1349
2 dollars
Without details like the series and condition, the best possible answer is that it's still worth $2.
Dollar bills are not always worth one dollar, however one dollar bills are worth one dollar for the sake that 1=1, it is a one dollar bill, and can be exchanged for goods and services.
The value of a dollar bill with a back plate number error could be worth a variety of different prices. This really depends on the type of error present.
I suspect a $100 dollar bill was worth exactly $100 in 1935!