Both Uses

although
in
A Clean, Well-Lighted Place
(Edited)

It is not only a question of youth and confidence although those things are very beautiful.
p. 3.8 *

although = even though
Nor can you stand before a bar with dignity although that is all that isprovided for these hours.
p. 4.2

although = but

Definitions:

(1) (although)
even though -- used to introduce an idea that contrasts with or makes the main statement surprising

At the start of a sentence, although can play a role similar to words like however, yet, still, even so, on the other hand, or nonetheless—all of which signal contrast. In the middle of a sentence, although can sometimes be used where but or though might also work, but though or but often sound more natural. For example, "She's a great teacher, though not the most popular" is usually smoother than "She's a great teacher, although not the most popular."
(2) (meaning too rare to warrant focus)