I recently bought this tsuba from Grey Doffin and I have been researching it ever since.   Measurements are 7.7 x 7.5 x 0.65 cm. The front and back are slightly concave.     The most striking thing (apart from its massiveness) is the motif. It seems to be either double fish scales... (Note the negative and positive arrangement).     or a double three pointed spool. (Note the rounded ends and the curves).     Intuitively I would go for the itomaki kamon, but there is a c