Jean Chardin referred to the mosque using the current name, and Quranic inscriptions within the mosque, done by Iranian calligrapher Baqir Banai, also include the name of Sheikh Lutfallah. In addition, the reckonings of Muhibb Ali Beg, the Imperial Treasurer, show that the Imam's salary came directly from the imperial household's resources. All this suggests that not only was the building indeed named after Sheikh Lutfallah, but also, that this famous imam was among the first prayer-leaders for the royal court in this very mosque. Architecture The entrance gateway, like those of the Grand Bazaar and the Masjed-e Shah, was a recessed half-moon. Also, as in the Masjed-e Shah, the lower façade of the mosque and the gateway are constructed of marble, while the haft-rangi tiles (Persian: هفت‌رنگی, lit, "seven-coloured", "polychrome mosaics") decorate the upper parts of the structure. The creation of the calligraphy and tiles, which exceed, in both beauty and quality, anything previously created in the Islamic world, was overseen by Master calligrapher Ali Reza Abbasi. The monument's architect was Mohammad-Reza Isfahani, who solved the problem of the difference between the direction of qibla and gateway of the building by devising an L-shaped connecting vestibule between the entrance and the enclosure. Reza Abbasi's inscription on the entry gateway gives the date of the start of construction. The north-south orientation of the Maydan does not agree with south-west direction of qibla; it is set at 45 degrees to it. This feature, called pāshnah () in Persian architecture, has caused the dome to stand not exactly behind the entrance iwan (see picture). Its single-shell dome is in diameter. The exterior side is richly covered with tiles. Compared with the Shah Mosque, the design of the Sheikh Lotf Allah Mosque is quite simple: there is no courtyard, and there are no interior iwans. The building itself consists of a flattened dome resting on a square dome chamber. However, in contrast to the simple structure of this mosque, the decoration of both interior and exterior is exceedingly complex, and in its construction the finest materials were used and the most talented craftsmen employed. Robert Byron wrote about this sight: I know of no finer example of the Persian Islamic genius than the interior of the dome: The dome is inset with a network of lemon-shaped compartments, which decrease in size as they ascend towards the formalised peacock at the apex... The mihrāb