Reverse Die B(N), the digit '1' of the denomination is shifted to the right, digits in the date are raised. (novodel)
Obverse Die 2.22(N), coordinate grid is unclear, sun's disc lacks a halo, star is irregularly shaped, different lettering of 'USSR' and details of the coat of arms design (compared to the circulation die), USSR coat of arms — 16 ribbon turns (number of republics in the USSR at that time). (novodel)