'72 Winnebago Indian - one or two fresh water tanks?

[JessEm]

'72 Winnebago Indian

Did they come with two (2) fresh water tanks, or one?  According to the brochure, an additional 30 gallon tank was optional. Looks like I have my answer on that one.

Thank you.

[Oz]

On the original, pressurized tank system, I've seen both one and two tanks in the rear.  As you found in the brochure, the 2nd must have been an option.