Australian 1/2 penny J. MacGregor 1855 Sydney

Hello,
I found in a lot a token that I identify as Australian 1/2 penny J. MacGregor 1855 Sydney.
Even the identification seems obvious,  can you confirm this?
I don't collect tokens, so I put it up for exchange.
But what do you think the exchange value of this token would be? Is it rare? 

Regards

Copper

W : 5,73 g.

D : 25 mm

This is the page for this Merchant Token  >> N#416814

I have seen them pop up in coin meets here in Australia occasionally. If you would like to swap it have a look at my list.

Regards Mike