Luigi Onesto ashtray

Hi Folks, I purchased this bowl / ashtray several months ago for 3 dollars at the local thrift store. After researching the wrong spelling of the signature on the bottom I sort of just gave up. Today I changed a few letters and viola discovered it's circa 1970 murano bullicante bowl by the famous artist Luigi Onesto. It stands 3 inches tall and 5 inches round at the top. Knowing is everything!