This amazing looking coin is nearly identical to dirhams of Harun al-Rashid, fifth caliph of the Abbasid Caliphate (750–1258 AD). When Harun died in March of 809 AD, his son al-Amin (787–813 AD) became sixth caliph and immediately began minting his own coins. Since Harun had already struck coins with the right date and mint, the sole difference on al-Amin's first coins is the phrase "rabbi Allah" on the reverse – "my lord is Allah." This coin was struck at the mint in Madinat al-Salam, the then relatively new "City of Peace" – original core of the city of Baghdad and official residence of the Abbasid court. It the finest known authenticated al-Amin piece from this mint. In 813 AD, poor al-Amin was deposed and killed by his half-brother al-Ma'mun amidst a civil war. About World Coins R Us OfferseBay's Buy It Now/Make Offer options gives both buyer and seller some flexibility. Go ahead and make an offer! I usually have wiggle room with pricing, plus it's fun to open a dialogue. The numismatic community is small – always good to connect with like-minded individuals. PhotosI never use stock photos. You will always see the actual coin on sale in the listing. ConsignmentsI am open to selling coins on consignment. To discuss, kindly contact me through eBay's messaging system. Shipping/Combined ShippingVarious USPS shipping products are available at the buyer's request. Since shipping is almost always free, combined shipping is automatic. Returns & RefundsEverything on sale at World Coins R Us is 100% guaranteed worldwide. You may return your purchase within 30 days and I will issue a refund and cover your return shipping. QuestionsI am happy to answer your questions. Be in touch!