Steam & Excursion > Odd Swiss steamers

While perusing Railpictures site I came across some small Swiss steam engines.  They are 0-6-0 but have not tender or saddle tanks.  They are classed E 3/3 which seems to be an electrically heated steam engine used in the Second World War.  While there is a trolley wire, they don't seem connected to it at all. Photo #576874 shows two of them in steam in May 2016 but with build dates of 1893 and 1899.  Where did they carry fuel and water?  They are at the Association Zürcher Museumsbahn whose website is not in a language I can read.  They are cute little guys and any info would be appreciated.
 

Maybe post this on the international board?

Possibly in a well tank? As I understand them, the frame is essentially an enclosed box that carries water.

Posted from Android

https://en.m.wikipedia.org/wiki/Electric-steam_locomotive

Apparently the preserved locos had their electrical components removed.

A-1 Wrote:
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> Possibly in a well tank? As I understand them, the
> frame is essentially an enclosed box that carries
> water.
>
> Posted from Android

Interesting, I'd never heard of a well tank.  It makes sense though, their running gear is outside the frame.