These Labour Exchange notes are collectible and come in a range of "hours" and were issued from 1832 to 1834 when the experiment ultimately failed.
According to various sites on the internet, notes in excellent condition notes are going for £30 to £40 GBP.
The British Museum has a collection of them.
The only suggestion that springs to mind is to take it to a coin dealer for an opinion.
Alternatively, you could try the head office of your country's union movement and see if they might be interested in purchasing it from you as piece of industrial relations history.
National Labor Union was created in 1866.
National Labor Party ended in 1917.
National Labor College was created in 1969.
The National Labor Union was the first labor organization that began in 1866. It was formed to build a national coalition of local trade unions. It disbanded in 1874.
Labor
Did the national labor relations act guarentee government support for organized labor?
National Negro Labor Council was created in 1950.
National Negro Labor Council ended in 1956.
National Labor Party was created on 1916-11-14.
William H. Sylvis was the leader of the National Labor Union.
National War Labor Board was created in 1918.
National War Labor Board ended in 1946.