Logeion

logeion (λογεῖον, “speaking-place”). In the ancient theatre, the front of the stage which was occupied by the actors. In Latin it was called pulpitum. 

The stage proper where the actors performed.

Related entries in the Perseus Encyclopedia:-

Perseus Encyclopedia: Logeion
Perseus Encyclopedia: Proskenion
Perseus Encyclopedia: Episkenion
Perseus Encyclopedia: Thyromata
Perseus Encyclopedia: Skene
Perseus Encyclopedia: Paraskenion
Perseus Encyclopedia: Theologeion

References

Dionysos, étude sur l'organisation matérielle du théâtre athénien par Octave Navarre - Internet Archive
Chapitre VII - La Question du Logeion - pp 87-109

Dionysos, étude sur l'organisation matérielle du théâtre athénien: Octave Navarre - Internet Archive
APPENDICE H - Encore la question du logeion.
Institut de correspondances hélléniques - Persée 

Haigh, A. E. (1890). Dr. Dörpfeld’s Theory about the Logeion in Greek Theatres. The Classical Review, 4(6), 277–282. https://www.jstor.org/stable/690610

Harrison, J. E. (1890). Dr. Dörpfeld on the Greek Theatre. The Classical Review, 4(6), 274–277. http://www.jstor.org/stable/690609

The Classical Review 1890-06: Vol 4 Iss 34 - Internet Archive

Narrative Setting and Dramatic Poetry - Mary Kuntz - Google Books

Thymele: F. Wieseler - Internet Archive

Plutarch as a source of information on the Greek Theatre: Flickinger, Roy C. - Internet Archive

Drama in Performance: Raymond Williams - Internet Archive

Search Results for Logeion - Oxford Reference

Search - Persée for Logeion

JSTOR: Search Results
For "The house door of the Ancient Stage"

The house-door on the ancient stage: W.W. Mooney - Internet Archive