framed, signed Japanese silk painting featuring irises and a butterfly

framed, signed Japanese silk painting featuring irises and a butterfly. Key details include:  Subject: Depicts irises and a butterfly, common motifs in traditional Japanese art.  Medium: Painted on silk, which is referred to as "Eginu" in Japanese art.  Style: influenced by traditional Japanese painting styles, possibly Yamato-e or Nihonga, which often feature natural themes.  Signature: Includes a signature and a stamp, indicating the artist.  Age: Estimated to be from the mid-20th century.  Value: Similar paintings can be valued around $125-$400.