Bud bottle. 1974 if I am reading it right.

I found this today in a semi dried up lake bed (not dry but 15 feet low). I love antiques but bottles are far from my focus. The bottom has the numbers "3-74" (is this the date of mfg?) It also (@ about 120 deg) has the letters "C-W" followed by a symble of some sort.
The bottle is imperfect in that it has a protrusion that would best be discribed as a large zit just below the downward curve of the glass. The glass is chiped there but does not leak.
It will go on the shelf with some other keep sakes but I would really like to know more about it.