Fun fact: You can estimate the voltage by the length of the insulators. My guess is this is around 100kV (2x 3 phase circuits), around the border of transmission and distribution voltages.
You can also estimate the capacity by the number of conductors per phase. This has a pair of lines for each phase, so a fair chunk, but not the 3 or 4 conductors you sometimes see (although maybe you mainly see that on higher transmission voltages.