In the morning of August 19th, 1974, a stone weighing approximately 3 kg fell on the roof of Masoumi School in Naragh, Iran, destroying a part of it, the floor of the laboratory hall, and taken home by some workers there. Eventually, after the presence of the Naraghi police the municipality investigations, the stone was

Shokri’s Workshop “Seifullah Shokri” was born in 1975 in Qazvin. He began his excessive studies of instrument-making at the age of 17 to make contemporary instruments. With this in mind, in 1999 he started his research for the construction of ancient instruments. To speed up this work, he established the first workshop for making musical