Maker: Semitecolo, Leonardo

Year: 1750 c.50

Year Range: -

Year Notes:

Manufacturing Location: Italy

Signature: LEONARDO SEMITECOLO

Signature Notes:

Inscriptions:

No stand present.

Collection: Adler Planetarium and Astronomy Museum

Accession #: M-447

Sources:

Project investigation

Public Notes:

Main tube is covered in orange-red paper, (silver?, now dark) tooled with floral patterns and variations on simple lines (rolled, knotted). Brass ferrule and objective glass mount, milled edges. Mount has screw threads for cap (missing). Three draws covered in green vellum. Each blind tooled with five simple rolls. Maker's name in cartouche on third draw. Single extension marks on first and second draws, triple marks on third draw. Ferrules missing (darkened cement remains). Eye cap missing. Three-lens erector has soft wood mounts; covered with paper splashed with orange, mauve, and green.

Closed length: 210 mm by 45 mm diameter.

Length (open): 590

Length (closed): 210

F-ratio:

Exit pupil:

Object status:

Objective type: singlet

Optical style

Physical style spyglass

Functional style

Materials: paper, pasteboard, vellum, wood, glass, brass, silver tooling

Drawtube data:

Drawtube notes:

Objective Data

Eyepieces

Notes: