Mark XXI ® scopes | Manufacturer: Asia optical (Japan) | 1964-1989 |
Sightmaster® spotting scope | Manufacturer: Asia optical (Japan) | 20X-45X: 1972- 1982 20x-60x: 1983-1989 |
Imperial® scopes | Manufacturer: Hertel & Reuss, (West Germany) | 1954-1973 |
Premier® scopes | Manufacturer: Asia Optical (Japan) | 1973-1982 |
Supreme scopes | Manufacturer: Asia Optical (Japan) | 1983-1994 |