I was rummaging around in a closet and came upon a case that I had not opened since 2005 when I relocated from Singapore back to Boston. It contains a small number of Sudoku tsuba (I will post separately) that I acquired while still in Singapore, including a daisho. I vaguely recall buying them probably on eBay. I must have been interested in them because of a general interest in Japanese culture. I certainly was not a tsuba “collector”—perhaps until now.    There is a final oddball su