The right coin (the one in the simple red square) is 5 sen. These are typical symbols used on senninbari, as same as tiger. 5 sen is over 4 sen, which can be read "shisen", and "shisen" is the same pronunciation as 死線 "life‐or‐death crisis". Similarly, 10 sen is over 9 sen, which can be read "kusen", and "kusen" is the same pronunciation as 苦戦 "hard fight". Thus, 5 sen coin is for overcoming life‐or‐death crises, and 10 sen is for surviving hard fights/situations.
また、穴の開いていない五銭硬貨や十銭硬貨を縫いこむことも行われた。これは「五銭」は「死線(しせん=四銭)」を越え、「十銭」は「苦戦(くせん=九銭)」を越えるという事に由来している。
Tigers as stitched or painted artwork were popularly portrayed on senninbari since they were known to be able to roam far away from home and then return safely.