It says the Labor Stamp wasn't issued and the red stamp 3 million. Do they qualify as rare?
Where exactly are you looking? I don't see that Stampworld says anything about the Labor Stamp not being issued, unless you're inferring that because the site doesn't show the number printed, that means it wasn't issued... which would be the wrong thing to think.
Not rare. An issue of 3m at a time when the total population of the island was around 14.5m makes it a pretty common stamp.