For those that make an income from firearms. To sell restricted weapons the dealer also needs to have the appropriate endorsements

  Collecting (must provide evidence in the form of books, club membership, collection of A type firearms), Museum curator, Family heirlooms and Theatrical.
    C category firearms must be stored in an inoperable condition
    Can never be used with live ammunition, but blanks are allowed for movie making and re-enacting
    Can only be taken to an approved display venue, re-enactment event or to another collector for sale.

D Licence – Dealers licence

For those that make an income from firearms. To sell restricted weapons the dealer also needs to have the appropriate endorsements.