Based on the serial number 4589984, these Carl Zeiss Jena Deltrintem 8x30 binoculars were manufactured in the East German (DDR) plant in approximately 1958–1960.
- Manufacturer: Carl Zeiss Jena (German Democratic Republic/East Germany).
- Model: Deltrintem 8x30 (Porro prism).
- Features: These typically feature high-quality BaK-4 prisms, a wide field of view, and a classic metal body