Career
Furthermore, he was the technical advisor to the London Royal Opera House from 1898 until his death in 1919. Today he is probably most known as co-author of the 3-volume book set Modern opera houses and theatres. Fires and public entertainments: a study of some 1100 notable fires at theatres, music halls, circus buildings and temporary structures during the last 100 years, publisher by Charles and Edwin Layton, London United Kingdom (1897).
Contributions to publications of the British Fire Prevention Committee:
The Paris charity bazaar fire, published by the British Fire Prevention Committee, London United Kingdom (1898).
Facts on fire prevention. The results of fire tests conducted by the British fire prevention committee, publisher by B.T. Batsford, London United Kingdom (1902).
A record of the International Fire Exhibition, Earl"s Court, London, 1903, organised under the auspices of the British Fire Prevention Committee.: together with a report on some of the exhibition events, published for London Exhibitions Limited. by the British Fire Prevention Committee, London United Kingdom (1903?).
The Brussels Exhibition fire: with some suggestions as to safeguards at future temporary exhibitions set out in the form of model regulations, published by the British Fire Prevention Committee, London United Kingdom (1911).
Sachs also contributed to the 1911 edition of the Encyclopædia Britannica, notably the section Modern Stage Mechanism in the article Theatre. The section is signed with his initials (East O South).