The Altairian dollar was a form of money. The Eighth Doctor had a "lucky" double headed Altairian dollar coin with which he flipped to make decisions. (AUDIO: Storm Warning)
Rarely, for Doctor Who, all accounts that present information about Hitchhiker's present it as reality, not fiction, even in accounts where the series is shown to also exist in-universe. Therefore, everything on this template is "reality" as far as the DWU is concerned. Some categorisation may be based upon conjecture. Real world information should not enter into this.
