What does のと mean in this context?


I was reading a children's book in Japanese and found this sentence:

> 明日になったら、町へ行って、木の実の干したのと、便せんを交換できないか聞いてみよう。

I understand most of it, except the part that says " **木の実の干したのと** ". I know
木の実 are nuts, and 干す apparently means to dry. But the のと confuses me, and also
the order (why is it "木の実の干した" and not "干した木の実"?). I really don't understand
what this means, nor how it's related to the rest of the sentence, since I
think the rest would be something like this "When tomorrow comes, he will go
to town, ◯◯, and he'll try asking if he could exchange letters."




This の is short for もの (物). 木の実の干したの is the same as 木の実の干したもの, which is the
same as 木の実を干したもの. This type of もの (の) is tricky to translate using English
relative clauses, but this is a common use case of Japanese relative clauses.
For the meaning and examples, see: [What does もの stand for
here?](https://japanese.stackexchange.com/q/95568/5010)

There is little difference between 木の実 **の** 干したもの and 木の実 **を** 干したもの, but
the latter is more common.




This の is short for もの (物). 木の実の干したの is the same as 木の実の干したもの, which is the
same as 木の実を干したもの. This type of もの (の) is tricky to translate using English
relative clauses, but this is a common use case of Japanese relative clauses.
For the meaning and examples, see: [What does もの stand for
here?](https://japanese.stackexchange.com/q/95568/5010)

There is little difference between 木の実 **の** 干したもの and 木の実 **を** 干したもの, but
the latter is more common.

