Two switches on the same plate is a 2 Gang arrangement.
Two way actually means operating one light from two separate switches as you often find on a stair landing with a switch upstairs and another downstairs.
Your two switches are Single Pole Double Throw meaning that the Com or common terminal is connected to either L1 or L2 as the switch is operated.
They are on the same plate but are electrically independent from one another - no connection between them.
Remember Lord Finchley...
Lord Finchley tried to mend the Electric Light
Himself. It struck him dead: And serve him right!
It is the business of the wealthy man
To give employment to the artisan.
Peccavi
April 2013