Ivan Nikolaevich Mamakin.Folk songs collected and recorded in Lukoyanovsky district.Pre -conducting letter of 1887.Signed:mounta...

Ivan Nikolaevich Mamakin.Folk songs collected and recorded in Lukoyanovsky district.Pre -conducting letter of 1887.Signed:mountains.Repair.(SRV. Below No. 160).- -.-Agreement No. 24 of 02/12/2016 Category 23 manuscripts of the works of members of the Russian Geographical Society and separate documents on the Nizhny Novgorod province, case 146..Electronic copy source: PB