These coins are amongst the few examples of unissued coins in the Arab world that were nevertheless widely forged.
The story behind this odd pair is interesting, yet incomplete. The Iraqi government was making an attempt to locally produce coins, after having minted their previous issues abroad (mainly by the British Royal Mint). Around the late 1980s or early in 1990, a decision was made to locally produce two high denomination circulating coins of 5 and 10 Dinars. The coins which were reportedly struck by the Iraqi company that produced military decorations and medals. The designs used are unlike previously issued types, and the overall quality is rather crude, especially when compared to previously issued coins. An unknown but small quantity of these coins made its way to the market. Both denominations are difficult to find, and some convincing forgeries exist. More information on these coins can be found on this page, which is part of my friend Waad’s informative and well-illustrated web site on Iraqi numismatics.