I have seen blue and pink ones with Murano labels....but, this is not a design exclusive to Murano, or paperweights.
The ones I have seen labelled were hollow and had ground off pontils, leaving a small concave mark where the pontil was broken off
and the rough edges ground away.
The ones I have seen have not had the "egg" shape like this, more the usual paperweight shape or almost round.
Sibylle Jargstorf, in her book "Paperweights" also shows a pink example similar to this one and attributes it to Murano ca 1950'ies.
I have one in my collection that is blue, almost round, hollow and with the remnants of a metallic label.
The remnants of the label are similar to those left by washed out Murano labels, and at probably not much older than the 1940'ies.
The satin air trap design has been seen in US products, some paperweights with the design attributed to Mt. Washington,
altho I belive this has not been conclusively confirmed.
There are other glass objects with this design that are, as far as I know, Mt. Washington,
so it is quite possible that they also made paperweights like this.
I have also seem items like this attributed to UK and "Bohemian" manufacturers.
The design is often referred to as "MOP" or "Mother Of Pearl".