Here we see the leader of the 47 Ronin, Oishi Kuranosuke, on the right, with his 16-year-old son Oishi Chikara on the left. These dolls are very unusual in that they have drawn swords;  except for Shoki the demon-slayer,  musha-ningyo normally have swords in scabbards and wield at most an axe or naginata. Presumably this scene depicts a moment before the raid, when the drawn swords will not go back into their sheaths until the enemy has been killed. For portraits by Kuniyoshi of these men and their companions, see Nancy Leek's 47 Ronin page.
The two men wear black and white jackets, and Oishi has a flap on his helmet, which are part of their disguise as firemen. A distinctive pattern of white triangles edging black cloth is often shown in woodblock depictions of this story. On their lapels their names are written; this also is a detail one finds in the Kuniyoshi woodblocks, and was apparently useful in identifying the men during the raid. The young man has trussed up his sleeves ready for action; the whiteness of his face would normally indicate artistocratic blood, but perhaps in this case it simply emphasizes his role as a noble youth.

This scene has a plaque on it which reads, Wakayama, Island of Honshu, Oct. 1 1945.

It seems likely that it was made to express or commemorate strong feelings in the wake of Japan's defeat in the World War. Given that the scene represents the enactment of sworn vengeance, it could indicate an intention of vengeance. It might, on the other hand, memorialize a kamikaze pilot who, like the 47 ronin, went to his death for loyalty. These would be from the point of view of the Japanese dollmaker.

On the other hand, since the inscription is in English, the scene may have been a commission from an American officer, perhaps to commemorate the dropping of atomic bombs as revenge for Pearl Harbor.
--Wakayama was an important port occupied by the Americans in September and October 1945, from which prisoners of war were transported.  The USS Bottineau and the USS Campbell arrived there on Oct. 1, for example.
--October 1, 1945 was the date originally projected for a conventional military assault on Japan, made superfluous by the use of the bombs and Japan's surrender on August 15.
--October 1, 1945 was also the date when the OSS was dissolved by President Truman, and seems to have been an important date in general for marking the transition from war to demobilization and, in Japan, occupation.