Only one place that it goes and that is before the 60
'60s
Indicating you have missed out the 19.
Yes, but what if it is class sixties, as in the trains'??
That is the sense I was referring too, to the year.
...... even though it is not really vital, would class become the 19??
Ok, ok, I'll take a look, but that was just what I was told.........
My interpretation:
60s would appear as... well, 60s. This is because it is a numeric representation of sixties, which doesn't appear as 'sixties. The pedantic would use '60s to represent the drop of 19 from 1960s, so, you pays your money... but 60s is preferable as it saves a character.
Not familiar with the trains, but Class 60 would pluralise to Class 60s. Assuming its a techincal term, it wouldn't be expressed in words as Class sixty or sixties. The wheels on the the train would be the Class 60's wheels
You'll have to excuse me for not considering the http://www.soyouwanna.com/ site, but I think I'd be on fairly safe bet that most of us won't be consulting an American site for advice on English grammar