Author: Utagawa Yoshitora (歌川芳虎).
Subject: Maebara Isuke Urabe no Munefusa (間江原猪介卜部宗房).
Series: Biographies of the loyal retainers (chūshingishi meimei den, 忠臣義士銘々伝).
Number: 41/50 (the syllable yu, ゆ).
Genre: musha-e (武者絵), chūshingura (忠臣蔵).
Size: medium (chūban, 中判).
Publisher: Wakasaya Yoichi (若狭屋与市) here as Shiba Jakuyōhan (芝若与板).
Period: c. 1864.
Trimmed: no
Backed: no
Code: UTY01001

Condition: color is clear and paper is in good conditions. Few, but not remarkable, stains. No wrinkles nor fixing.

Maebara Isuke Urabe no Munefusa was one of the 47 loyal retainers of Asano Naganori (浅野長矩) which took part to the assault of Kira Yoshinaka's (吉良義央) mansion, killing him for avenging his Lord Asano.
Here he's knocking down a door or Kira's mansion, probably looking for him during the assault.
His real name was actually Maebara Isuke Munefusa (前原伊助宗房), but being any reference to the original characters of the story prohibited and subject to censorship it was changed with a similar one.
Maebara was described as a gentle man of few words, skilled in martial arts and archery.
This series from Yoshitora doesn't refers to each print using common numbers but with the syllables of the Japanese Hiragana alphabet.