This is the genuine 1550 Received Text of Robert Stephens, as reprinted by F. H. A. Scrivener in 1887.
This edition should not be confused with Scrivener's later editions which were edited to mirror the Authorized Version.

In addition to the main text, Scrivener included footnotes with varient readings from the margin of the 1550 printing of Stephanus' textus receptus, as well as variants from the following early printings and editions:Bezae Textus Receptus.
Elzevir Textus Receptus.
Lachmann Critical Edition.
Tischendorf Critical Edition.
Tregelles Critical Edition.
Wescott and Hort Critical Edition.
Revised Version (KJV) of 1881.

Take note that the introduction is in Latin, but the Biblical text in Greek.

Official Title:

H KAINH ¿¿A0HKH
NOVUM TESTAMENTUM
TEXTUS STEPHANICI A.D. 1550

CANTABRIGIAE, DEIGHTON, BELL ET SOC:
LONDINI, WHITTAKER ET SOC: G. BELL ET FILII.
[...].LXXXVII.