specimen

実物　—　Reading

Not a photograph or a drawing: a coin you can hold.

Gold stater of the Parisii2nd–1st century BC Denaro of Lucca11th–12th century Akçe of Murad IIFirst half of the 15th century

⚠ There are things that cannot be understood without seeing the actual specimen. Its weight, thickness, size in the hand, the depth of the engraving under light. This is why the teaching materials always ultimately refer back to the physical objects.