Victorian era astronomer writing notes about his findings
Edisons failure testing the light bulb closeup
victorian scientist using microscope focus on boiling flask
WWII scientist working on breaking the Enigma machine code
Edisons successful carbon filament light closeup
macro 18th century man writing with a quill pen
closeup businessman opening folder and writing on legal documents
doctor studying a hand joint
camera moves around the desk of a 1885 scientist
victorian scientist making notes for different chemicals
19th century apothecary or chemist using a dip pen writing notes
1930s doctor looks at testube and writes on a clipboard
rack focus scientific equation on chalk board.
vintage man on a train drinking coffee and writing in a ledger
closeup vintage man writing in a ledger while riding a train
1885 scientist writing in his journal
1930s doctor gets up from desk to talk to nurse
Victorian detective writing and looking at paperwork
teenagers in a school chemistry class
businessman working on documents at his desk 4k
Scene tracks around a Victorian era scientist working in his laboratory using a dip pen to make some notations in a notebook of his work.
victorian scientist looks through microscope and takes notes
victorian woman scientist writing notes
Focused Individual Writing at a Compact Desk
businessman working on paperwork focus on desk lamp 4k
closeup victorian scientist making notes from microscope
A Victorian era scientist working in his laboratory using a dip pen to document observations made through a brass microscope typical of the time period.
macro 18th century coins and man writing with a quill pen
victorian scientist looking at medicines and taking notes
victorian era scientist looking through a microscope
macro shot of businessman writing on a legal document focus on foreground
WWII scientist working on the Enigma code machine
1940s vintage writer typing and correcting his story
Victorian detective writing notes using a dip pen
Vintage 1930 Nurse Handing The Doctor A Blood Sample In A Test Tubecolor Version
man writing notes
Friendly student's cheerful smile
Victorian era scientist thinks about what he sees in the microscope
victorian scientist making notes on chemicals
Two young scientists discussing and using a tablet PC 4K
vintage 1930 nurse handing the doctor a blood sample in a test tube
Portrait of tired senior man to not listens notations from his serious wife when they together sitting on the couch at home. Family problems
A Victorian era scientist working in his laboratory using a dip pen to make some notations of his work.
wide shot 1930 nurse looking through a microscope then takes notes
1940s reporters looking at a roll of film for the story
wide shot businessman writing on a legal document
closeup of businessman writing on a legal document 4k