Geconcentreerde volwassen bebaarde zakenman achter venster - Stockfoto’s en -afbeeldingen

Smiling mature businessman with clipboard behind window on sunny day

Concentrated mature bearded businessman behind window

Portrait of handsome mature man, outdoors. Old man with a grey beard. Fashion look.

Portrait of smoking gentleman wearing trendy suit and stands against the empty wall.

Side view of senior stylish concentrated man with beard and coffee cup in glasses and business suit sitting and reading newspaper against windows

Senior handsome bearded man with newspaper and coffee cup in glasses and business suit sitting and looking away against windows on street

Portrait of smiling scientist looking at hand through magnifying glass in laboratory

Portrait of scientist looking at tweezers through magnifying glass with colleague behind in lab

Grey haired man working at home using digital devices and notebook

Grey haired man working at home using digital devices and notebook

Upset grey haired man sitting at table and using smartphone at home

Serious grey haired scientist in lab coat looking at camera with arms crossed

Portrait of smiling senior man looking at camera while sitting at served table at home

Portrait of happy scientist looking at bottles with reagents in hands in laboratory