Outside dimensions: 29-1/2” by 23-1/2” Inside dimensions: 24-1/4” by 18-1/4” I don’t know the media.
The owner traveled to Thailand in the 1970s and purchased it there.
Sorry for having taken so long to reply to your appraisal inquiry.
The item presented appears to be an oil painting from the 20th century executed by an East Asian painter. It measures 24 1/4 (h) x 18 1/4 (w). The work is unsigned, and it appears to be in excellent condition.
As this particular work is unsigned, the estimate provided is based on recent auction estimates and results of similar East Asian paintings without artist attribution, dating from the 20th century. The current condition (based on photographs provided) has been taken into consideration when determining the estimate.