Thank you for submitting your item for appraisal. This appears to be an oil on fabric painting, laid down on board, depicting the iconic kingfisher bird Kookaburra, native to Australia and New Guinea. The painting bears the inscription "Kooka Burra Australia" and the signature "W.Cockell". The painting was done directly on fabric without primer, which would be typical for an amateur artist. This appears to be a souvenir painting, produced mid 20th century by an unknown, not listed artist. The estimate is based on similar paintings by lesser known artists sold at auction. There is no measurement for the sentimental value you might attach to it.