18th century Italian Telescope

This early telescope is presumably Italian. The main tube is covered with leather. It has two white pasteboard drawtubes. The ferrules (rings) and end pieces are made of horn. It's is still functioning.

Lenght retracted is 30 cm and extended is 70 cm.

Radius is 3 cm.

Weight: 125 gram.

The last picture shows a dormer window seen through this telescope