hazbean wrote:This piqued my interest because in our modest collection of 20 odd hand grinders there is one HaHa which I have so far neglected to investigate in much detail.

Regarding the flea market grinder, I found another one with a similar but not quite identical mark, see

http://www.worthpoint.com/worthopedia/a...-prima-h-h

I think this is earlier than the flea market find.

I also found a very poor example at http://www.okazii.ro/catalog/44243222/r...quot-.html

These all have the "H H" mark. As suggested above, these are likely to be early versions of the HaHa brand.

This name was used by Harhaus of Hagen in Germany, est 1875. Sometimes spelt Hachhaus, as the cursive font on the handle is confusing.

I've attached pictures of part of mine below. It is identified in Ian Bersten's book "Coffee Floats. Tea Sinks" as "Germany, 1950s". The adjustment lever works up to a point, it does a quite good Chemex grind.

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There are some other examples of what seem to be more recent HaHa grinders on ebay, eg

http://tinyurl.com/3j7bvyp and http://tinyurl.com/3jyv7dn

Would be interesting to find a stronger link between "H H" and HaHa ...