IFA is a norwegian liquorice-pastille produced by the Nidar company.
IFA is named after the famous opera singer Ivar F. Andresen who adorns the small candy box.
Ever since the 1930s, his face has been seen on the package, along with a quote recommending the product to "singers, public speakers, smokers and athletes".
I go to Norway
each year to refill my stash of IFA, a very delicious pastille