Ian:
Line side is on the left. Notice the lugs lead to bus bars connected to the top clips.
Generally speaking, the top clips of a "Form(n)S" meter (Where (n) is a number representing the configuration and voltages) are always line side, the bottom clips are load side.
A Form 2S is the common residential meter, being 120/240 volt, single phase, 3 wire.
Now as to the pic:
Was this posted as being a violation? Or just for discussion? Despite the sticker on the pipe below the can being red (orange?) it looks like it says "Approved" on the top line.
