Now 2nd class.
There are two versions of boxes for 2nd class rising suns.
Why?
Because there were two versions of 2nd class rising sun order between 1875 and 1920s.
Peterson was absolutely right when he wrote that The Second Class of the Rising Sun originally consisted of the same breast star alone, worn on the right breast. Imperial Edict No. 76 of November 17, 1888, provided that an accessory insignia would be worn on the neck, and Imperial Board of Decorations Directive No.1 of November 19, 1888, specified that this accessory badge is identical to the Third Class badge of the Order. ("Orders and Medals of Japan and Associated States", 3rd edition, p. 24)
Unfortunately not all our colleagues were able to read Peterson opus thoroughly. Otherwise why some of them made such false, sweeping statement like this one: "The Rising Sun breast star does not have its own case since it is always part of a 1st or 2nd class set. Hence, it will be in the relevant case, these are rectangular". I must say this is very poor scholarship. We'll let this statement lies heavy on their phaleristik conscience
That`s how early 2nd class case looks like (thanks for the pictures Pieter!!!)