| This volume contains reproduction in colour of sixteen Jacobite pictures and seven portraits in collotype. |
| That is because, at the time, the collotype process was developing rapidly in our country. |
| Therefore it's no wonder only a handful of collotype studios are still existing in the world today. |
| The collotype plate is then exposed under the negative and washed in cold water until the yellow bichromate no longer comes away. |
| Printing high quality collotype illustrations for books was a decent size industry at one time. |
| Four bare-chested pressmen labor in a small room with a huge collotype printing press. |
