 Bertin is presented as strong , energetic and warm @-@ hearted . His hair is grey <unk> on white , his fingers spread across his knees . Bertin 's fingers were described in 1959 by artist Henry de <unk> as " crab @-@ like claws ... emerging from the <unk> <unk> that are the sleeves of his coat . " The bulk of his body is <unk> in a tight black jacket , black trousers and brown satin <unk> , with a <unk> white shirt and <unk> revealing his open neck . He wears a gold watch and a pair of glasses in his right pocket . In the view of art historian Robert Rosenblum , his " nearly ferocious presence " is <unk> by the tightly constrained space . The chair and clothes appear too small to contain him . His coiled , <unk> fingers rest on his thighs , barely protruding from the sleeves of his jacket , while his neck cannot be seen above his narrow <unk> white collar . 
