Guild Wars 2

I killed Teq and got the carved spoon. Apparently I already got the spoon box, don’t remember doing it tho. So now I have the achievement started.

So do I have to keep the spoon? Or can I sell it to a vendor and recover the bag/bank space? Wiki entries are not helpful in this regard. I note that the Skritt junk achievement does not of course require you to keep the junk, but one never knows until one asks.
Thanx,
ww

once its unlocked for collection you can sell it, it won’t disappear from the collection.

Thanks much,
ww