Now, over to what I intended to be the main subject today – Heracles attributes. This is important as it is how you recognize the hero in art. It’ll be presented how he gained these items later.
Anyway, there are three main items and several minor ones that you can recognize Heracles by. The first three are the lions skin (normally around his neck with the head as a helmet. Here it's used to cover the extra support as the marble statue would break without it.) The second one is the olive club and the third one a bow and arrows, usually next to the hero.
The minor ones are the items that represents his labours and deeds. It is no uncommon to see him carrying the apples of Hesperides, dragging away Cerberus or next to a man that it hiding in a pithos (a large vessel, the man is Eurystheus who is scared by the creatures that Heracles bring to him).