Jersey square 1£ coin [solved]

I did a bit of research about the square Jersey 1£ coin issued in 1981 to commemorate the 200 years of the battle of Jersey.
https://en.numista.com/catalogue/pieces14682.html
By searching on the internet I found out that some of those were sold in some red album holders with an explanation about the commemoration and the seal of the Bailiwick of Jersey. But I could not find any information about whether or not those coins were proof coins or simply UNC ones, or even maybe an album released after the coin.
Does anyone has any info about this ? I could send pictures about the particular holder if it can help.
Thanks !
Gilles

Hi PoulpitosSpatial, it would appear that if this is the red folder that you are referring to then the coin would be UNC http://www.ebay.com.au/itm/254465766446

This is the folder I was talking about, then it seems it isn't proof. I wonder how was the proof one sold, and also how many of these red holders were sold/put into circulation.

I see that it was available as a proof coin in this set http://www.ebay.com.au/itm/323453265994

Oh I see ! Thanks a lot I didn't think about a full set release but it seems pretty obvious.