Help Identifying Trieste Stamp

Good Morning, I can't find any info about this stamp. Any suggestions appreciated.

Most likely a local revenue stamp

Hi kamarada,

This is listed as issued around 1946 in Barefoot's Yugoslavia Revenues catalogue.

It is listed under City of Trieste Chamber of Commerce as Bf. #16.

There is also a 2 lire stamp in the same design but different colours.

These types of stamps were used on different types of documents.
They are from the Corporative regime in Italy,put in place by the Mussolini regime.
There was an inter-syndical committe for each province.Presided over by the Federal Secretary of the facist party on which sat représentatives of the twin (provincial industrial,agricultural and commercial unions
of employes and employed on the Cooperative societies and of the Provincial Economic Council)
This was an oversight structure to avoid speculative market and other
uncontrolable market disruptions.
The stamps with different values and designs exist for all the major cities in Italy.

Great info guys. Cheers to all!