1959-P Mint Set - Unusual Find

You might also want to check the 1959P quarter and see if it is a Reverse B type. If it has a space between the bottom of the E & S in the word STATES it is.....

It's always good to learn something new everyday. Let's see the quarter reverse

The Washington quarter used 3 different types of reverse
dies. Types A,B and C
The type A was normally used on business strike coins and the type B was used on proofs. A type B rev. was accidently used on some quarters 1956 through 1964 inclusive. They bring a premium and more if in better grades. There are a few things to look for on a type B reverse. There is a distinct spacing between the letters E and S (states) at the lower end. Normally they are touching or just about touching each other.
Also (see pics.) The tip of the leaf rises slightly above the head of the arrows. And also the tail feathers are more defined and sharper than on the normal type A reverse. Look at some other silver quarters to see the type A then you will be able to learn and then spot a type B pretty quickly.
There is also another reverse variety to look for and that one brings even a bigger premium. That is a type C reverse
on the 1964-D only quarter. Normally a type A rev. was used
on this coin but the reverse die from a 1965 quarter was used on some of them. See pic. also of the type C and learn
about it. It is the 3rd pic. down.

I just learned something.

Not knowing much about the quarter I pulled my 1959 P&D mint set and whoa and behold, lookie what I found. What little I found on the web seems to indicate the type B reverse was struck with a proof die.

Is that correct? Am I following this right?

What kind of value do these bring?

It isn't uncommon to find Reverse B quarters in 1959 as well as 1960 Mint sets. Reverse B quarters are selling on ebay in Unc for $10-20 each. More if they are slabbed. Fewer slabbed pieces are showing up on ebay. Hopefully demand for these varieties will increase and prices should move up accordingly.