compass card(n = noun.artifact) mariner's compass - compass in the form of a card that rotates so that 0 degrees or North points to magnetic north; Array
is a kind of magnetic compass

bank card, baseball card, birthday card, boarding card, borrower's card, business card, calling card, card, card carrier, card carrying, card catalog, card catalogue, card game, card index, card player, card shark, card sharp, card sharper, card table, card trick, cardinal compass point, cash card, charge card, christmas card, circuit card, compass, compass flower, compass north, compass plane, compass plant, compass point, compass saw, court card, credit card, debit card, donor card, drawing card, easter card, face card, filing card, flash card, gaming card, get-well card, green card, greeting card, hole card, hollerith card, id card, identity card, library card, magnetic compass, mariner's compass, mass card, membership card, phone card, picture card, playing card, post card, postal card, punch card, punched card, radio compass, ration card, report card, sea card, sea compass, show card, smart card, sympathy card, tarot card, trading card, trump card, union card, visiting card, wild card