• 09.037 Some of them were wine-barrels,

These words do not properly concatenate with a hyphen, according to the good folks at OED.  This is another Tolkien invention – so subtle as to never distract from the action, enough to remind us we are reading a translation.

Hyphenated in its mention in the OED.

“wine, n.1.” OED Online, Oxford University Press, June 2017, http://www.oed.com/view/Entry/229302. Accessed 21 September 2017.