▲这不是倒装现象，只是of的不同意义导致了语义相似的两种结构而已。

倒装不会改变成分的语法功能，只是纯粹的位置变化。

而a peace treaty of some sort和some sort of peace treaty这两个名词短语的语法结构不同：

前者中，名词短语some sort充当of的补足语，然后整个介词短语充当peace treaty的后置修饰语，最后在前面加上a来限定；

后者中，名词短语peace treaty充当of的补足语，然后整个介词短语充当sort的后置修饰语，最后在前面加上some来限定。

▲of的意义之一是表示名词拥有某种属性。比如：

• They do that for a specific reason, because nearly every one of all ages, races, and creeds buy Nintendo products. 他们这样做是出于一个特别的原因，因为不同年龄，种族和信仰的人都购买任天堂的产品。

• But there was no evidence that this advantage depended on the married parents being of different genders. 但是并没有证据表明这个优势依赖于父母亲双方是不同性别的。

• People of all colors and creeds have come here to celebrate the holiday. 各种肤色和各种宗教信仰的人聚集在这里欢度节日。

• Whenever Zombie Boa becomes blocked by a creature of that color this turn, destroy that creature. 于本回合中，每当僵尸蟒蛇被该色的生物阻挡时，消灭该生物。

• It has been used for the simulation of running processes of vehicles of different maximum speeds. 该模型被用于模拟具有不同最大速度的车辆行驶过程。

• The crisis faced over the next few months is of an entirely different scale. 接下来几个月内将要面临的危机规模将是无法相比的。

• Both world wars were of unquestionable importance as economic events. 两次世界大战都是重要性无可置疑的经济事件。

因为“种类”也是一种属性，所以sort和kind也适用此结构。这也是你提问的这个用法。

• I'm going to have a salad of some sort. 我想吃某种沙拉。

• Eddie was playing a game of some sort. 埃迪正在玩一种游戏。

• Would you like a drink of some kind? 您想喝点什么吗？

• Exercises of this kind are very popular. 这种体育活动非常流行。

• Ear pain of any kind must never be ignored. 决不要忽视耳部的任何疼痛。

▲of的另一意义是表示名词包含其他东西。比如：

• a bottle of beer 一瓶啤酒

• plates of gold and silver 金银制成的盘子

• a book of short stories 一本短篇小说集

由此衍生出of的量词功能，以及表示材料和内容的义项。

我们最熟悉的a kind/sort of等结构就属于此类情况。

▲一般而言，“(a/an)+(若干前置修饰语)+名词+of+限定词+sort(s)/kind(s)”和“限定词+sort(s)/kind(s) of+(若干前置修饰语)+名词”可以相互替换，比如：

• a game of some sort = some sort of game

• things of all sorts = all sorts of things

• people of this kind = kind of two people

• pain of any kind = any kind of pain

▲此外，of还可以表示范围，这种情况往往会与最高级、first/last、基数词、表示数量的代词连用，修饰名词或者充当状语。比如：

• They met and fell in love in a supermarket, of all places. 那么多地方，他们偏偏就在超市里相遇并相爱了。

• The first of these two was the tallest of all the children, a dark and thin girl. 其中第一个孩子是个子最高，肤深腰纤的女孩。

• She was the last of the great educational reformers. 她是唯一健在的伟大的教育改革家。

因为one's kind可以表示“在同类事物之中”这一范围，所以有of one's kind的用法。

• The school is the first of its kind in Britain. 这是英国同类学校中最早的一所。

• Her travel company was the first of its kind. 她的旅行社是同类中的首家。

• This book prize is the biggest of its kind in the world. 这一图书奖项是世界上同类奖项中分量最重的。

• The new deal was considered to be the most generous of its kind. 这一新交易被认为是同类交易中最大的一笔。

请留意这种用法和上述第一种用法形式相似，但结构和意义均不同，也无法进行上述的替换。

the best of its kind ≠ * its kind of the best