Thank you for submitting your item for appraisal. This appears to be a good size painting by Geoffrey David Armstrong ( 1928 -). Titled "broken light" on the stretcher, dated 1975 and fully signed. The artist lives in Ontario and is known for his abstract paintings. This painting would be a great addition to a mid century modern design collection. Few of his works of art were offered or sold at auction. The estimate is based on the few results.