DoN. Nichols wrote:

(...)

I remember white cubes which were provided as the fuel for a
kid's model steam engine. I never knew what they were, and no longer
have the steam engine, so it does not matter -- but could something like
semetex have actually been provided with a toy back in the early 1950s?

Enjoy,
DoN.


Esbit?

http://www.esbit.de/index.php?id=79

--Winston