Yes, in my view it's definitely a Murano weight.
The colours and form of the canes are very typical (and I personally hate the "sickly" shade of orange and yellows used). As far as I know, those canes are not regularly found in other maker's weights - unlike the many modern Moretti canes which are sold worldwide.
As for date, or maker, I am never sure about most Murano pieces. But 1950s, or a bit earlier, could be right.