Handwritten Invitation, Signed by Rebbe Mordechai of Luchinets - Grandson of the Ohev Yisrael of Apta

Handwritten invitation, signed by "Mordechai son of the Rabbi of Luchinets". [Voroshilovka (Ukraine), mid-19th century].
Invitation to the wedding of his daughter with the groom R. Baruch "grandson of my brother-in-law R. Yisrael", which will take place on Shabbat Nachamu.
R. Mordechai (Leiberson) of Voroshilovka (born c. 1810-1820), son of the daughter of Rebbe Avraham Yehoshua Heshel of Apta. Son of Rebbe Yisrael of Luchinets (died c. 1844), and son-in-law of Rebbe Yosef David Landau (died in 1849). His father, the Rabbi of Luchinets, was a descendant of R. Liber Hagadol of Berdychiv and a descendant of R. Yechiel Michel of Zlotshev.
A photo of this invitation appears in the book HaChassidut M'Dor L'Dor, p. 92 and in the compilation Siftei Tsaddikim, Vol. 4, Shevat 1992, pp. 79-80 [in Siftei Tsaddikim, the writer notes that the daughter-in-law Dinah was named after his mother Rebbetzin Dinah of Luchinets, daughter of the holy Rabbi of Apta and assumes that the groom is the grandson of his brother-in-law R. Israel Landau of Deliatyn - son of Rebbe Yosef David Malik].
Leaf, 18 cm. Good-fair condition, creases and folding marks. Stains and faded ink. An inscription of an addressee on verso: "To the outstanding important Chassid R. Nachum son of R. Levush".