1923 Sc 011I Air Mail Scott C4

1923. Air Mail.
Condition: MNHOG. Strip of 5 with printing marks.
Catalog numbers: Scott C4, Standard Collection O11I, Michel XVII.
Issued on: October, 1923.
Perforation: Imperforate.
Printing: Lithography.
Colors: Multicolor.
Face value: 5*5 ₽.