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A gloved hand holds a small chunk of uraninite, a uranium-containing mineral.
Picture of a thermometer used to measure room temperature, a wooden thermometer, indicating 20 degrees celsius, the recommended temperature for indoor.
A card admitting one visitor to a patient, Mrs Smith, in a 1950s British maternity hospital, between the hours of 3.00pm and 4.00pm on Sunday and Thursday. Husbands allowed to visit (without visiting card) every evening from 7.00pm to 8.30pm. Children under 12 years of age not allowed! (Hospital name removed.)
right angle ruler
Number 20 Pattern Design on Banknote
Forensic scientist investigates shoeprint mould evidence in crime lab, conceptual image
Scientific research. Test tubes inside a Beaker.
Cancelled Stamp From Germany Featuring The Genetic Scientist Gregor Mendel
Close-up of ruler with copy space
real cinefilm with empty frame.
Borderline Separating Baden-Wurttemberg And Bayern In Ulm, Germany
old postal stamp with image of Beethoven the famous classical composer
Stamps on Turkish passport page.
Selective focus a part of the plastic green transparent precision measurement tool. Centimetre, inch, millimeter. Measurement and comparison
Coat of arms of Croatia Pattern Design on Croatian Currency
Shreveport, Louisiana, USA - August 26, 2016: Close-up photo of the front and back of Tamiflu antiviral capsule packs with an expired expiration date.
Fresh green tea in its packing
Measuting tape of green color
View of the wooden ruler and the millimeter and centimeter scales with red and black numbers. A measuring instrument for craftsmen and do-it-yourselfers.
silver foil adhesive tape isolated on white background
Richmond, Virginia, USA - November 7th, 2011: Cancelled Stamp From The United States Featuring President Dwight D. Eisenhower. He Was A 5 Star General And Commanded Forces During World War II Before Becoming President Of The United States.
inspiration for the art of folding napkins for hotels, cafes and restaurants
USA stamp: Shows We Hold These Truths, Jefferson Memorial illustration
Diet concept with a flexible meter and a sheet of nutritional values of a food close-up
A 1998 Austria postage stamp with an illustration of a landscape scene within Kalkalpen National Park in Upper Austria; postmarked in Vienna (Wien).
Metal ruler close up
Ruler made from metal with measuring numbers isolated on white background
salvador, bahia / brazil - july 7, 2015: tape measure is seen next to fabric.
Free Images: "bestof:Sample and Doerpfeld 1935.jpg en L to R Wilhelm Dörpfeld archaeologist Prof W T Semple U of Cincinnati and his wife Louise Taft Semple benefactress of U"
Gerrit_van_Honthorst_-_Portret_van_Friedrich_Wilhelm_I,_keurvorst_van_Brandenburg_(1620-1688)_en_zijn_echtgenote_Louise_Henriette_van_Nassau_(1627-1667).jpg
Gerrit_van_Honthorst_-_Frederik_Hendrik_met_familie.jpg
Willem_II_prince_of_Orange_and_Maria_Stuart-2.jpg
Gerard_van_Honthorst_-_Frederick_Hendrick_with_His_Wife_Amalia_van_Solms_and_Their_Three_Youngest_Daughters_-_WGA11678.jpg
The_Anatomy_Lesson_of_Max_Weber,_by_Lodewijk_Ignatius_Stracké_(1856-1934).jpg
Sample_and_Doerpfeld_1935.jpg
Nydri-2.jpg
Prof. John Erskine, author; & family.jpg
Peter_Andreas_Fenger_and_family_by_Juncker-Jensen.jpg
Missionaries Christiansborg around1860 B002a.jpg
Bröllopsgäster_till_Ingrid_och_Fredrik_-_Livrustkammaren_-_5312.tif
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