| ZEISS | Carl -, optical instruments manufacturer established in Germany in 1846 |
| CARL | and 7dn, German maker of optical instruments who founded a company in Jena, Germany in 1846 |
| LOTTO | Italian sportswear manufacturer established in 1973 in Montebelluna in the Veneto |
| SISU | Finnish truck manufacturer established in Helsinki in 1931 (4) |
| GRUNDIG | German consumer electronics manufacturer established in Nuremberg in 1945 |
| ACORN | Computer manufacturers established in Cambridge in 1978 and dissolved in 2015 (5) |
| MASERATI | Italian luxury vehicle manufacturer established in 1914, in Bologna, whose emblem is a trident |
| RENAULT | Automobile manufacturer established by brothers Louis, Marcel and Fernand in 1899 (7) |
| DACHAU | Nazi concentration camp established in Germany within two months of Hitler becoming chancellor (6) |
| WATERMAN | Luxury fountain pen manufacturer, established New York 1884 (8) |
| LENS | A transparent biconvex body in the eye which focuses upon the retina light rays entering the pupil / piece of transparent substance used in optical instruments to form an image |
| YAMAHA | Torakusu ?, Japanese watchmaker born in 1851 who founded a motorcycle and musical instrument manufacturer (6) |
| BAUSCH | Lomb's partner in optical instruments |
| SCOPES | Optical instruments in cloak smuggled aboard ship (6) |
| PERISCOPES | Optical instruments in submarines for looking above the surface of the water (10) |
| TELESCOPES | Optical instruments used in astronomy (10) |
| LOGGIA | Register those in the vanguard in Germany in art gallery |
| MAUNDY | Annual ceremony in England and in Germany in part of spring (6) |
| EINSTEIN | Albert, Swiss physicist born in Ulm in Germany in 1879 (8) |
| THERMOS | Manufacturer of insulated food and beverage containers, founded in Germany in 1904 (7) |
