Insegnante anziano. Divertente professore o scienziato in un abito elegante. Copia spazio su lavagna, lavagna, banner - Foto e immagini stock

Confident teacher or professor. People scientist occupation concept. Copy space on chalkboard, blackboard, banner

Confident teacher or professor. People scientist occupation concept. Copy space on chalkboard, blackboard, banner

Closeup face of professor or teacher on blackboard isolated

Serious teacher. Closeup portrait of senior academic professor near empty blackboard. Knowledge and traditional education concept

Confident middle-aged male teacher or professor standing in front of a blank chalk board. Funny professor or scientist in a elegant black suit. Teachers day

Closeup portrait of old male professor. Portrait of man with copy space. Successful face of mature teacher with eyeglasses

Closeup portrait of senior academic professor on lecture near empty blackboard. Knowledge and traditional education concept

Senior man. Portrait of senior man with white beard over a wooden background

Senior man. Portrait of senior man with white beard over a wooden background

Senior man. Portrait of senior man with white beard over a wooden background

Senior man. Portrait of senior man with white beard over a wooden background

Senior man. Portrait of senior man with white beard over a wooden background

Senior man. Portrait of smiling happy man with white beard over a wooden background

Senior man. Portrait of senior man with white beard over a wooden background

Senior man. Portrait of senior man with white beard over a wooden background

Senior man. Portrait of senior man with white beard over a wooden background

Senior man. Portrait of senior man with white beard over a wooden background

One professional male visagiste with many different natural make-up brushes for eyeshadow powder and facial foundation on black background, vertical picture

Old bearded man with long grey beard on smiling face in checkered shirt with red chilli pepper or capsicum on wooden wall background

Senior man. Portrait of senior man with white beard over a wooden background

Male eye with bright dotty lens and hairy eyebrow of old bearded man with wrinkled skin and long beard on serious face, closeup

Handsome bearded old man with silver moustache on serious face in white hard hat and suit with notebook and pen on gray background