Calculation Machine

#dragée #rizzyedit #ashenda #rat city #bad vides #pry bar #bigpipe #jaebrian #fruste #fivestars

Webcam Model(Black_Diamond_9) is live
LIVE
Joseph Edmonson, Mechanical calculator, 1889. Brass and steel mechanism. Patented in 1883, Made by W

Link #joseph edmonson #calculator #calculation machine #british design #19th century #computer history #math #mathmatics #additon