Gold was in the official line-up for four years, 1955, 1956, 1957 and 1958. It is very similar to Wheat and Topaz. The only way to be sure you have a Gold water bottle would be to look for the Blenko etching on the bottom which this example unfortunately does not have.
See the blog update below.
At this point I will include a list of the colors that could have the 1958-1960 etching on the bottom.
Crystal, Charcoal, Sea Green, Tangerine, Gold, Nile, Teal, Jonquil, Turquoise, Mulberry, Lilac, Jade, Aqua and Persian. So far, I have shown you two that have the etching, which are Sea Green on Day 31 and Lilac on Day 62. A special order of Marine Crystal was also made for the Everpure Company and etched. These are somewhat rare.
On day 55 a follower commented that the Amber water bottle shown might possibly be Gold. Below is a comparison photograph of that Amber bottle and this Gold Bottle.
I should remind you that this Amber is not the typical Amber and it is possible that it is not Amber at all. (But what, then?)
Blog Update-November 28, 2013-This water bottle has a raised ridge on the bottom and therefore it could be either Amber from 1985 (which it is not) or Wheat which it must be by default.