Embossed aluminum. Embossed outside. Beer. Zhigulevskoye. Production period: before 1969.

Inscription on cap: along the inner circumference - "Жигулевское", along the outer one - "Пивзавод Бадаева Цена 25 к.б.п."

© Image by Art Zhitnik

The cap with number 18 has enlarged font of a date. Looks like on RU420101-0015.