Philipp Reclam jun. (Firm)

found: Gesamtverzeichnis Literarisches Museum, Verlag Philipp Reclam jun., 1828-1867, 1983:page 5 (Philipp Reclam jun. was earlier called Literarisches Museum)

found: LC data base, 8/19/92(hdg.: Philipp Reclam jun. (Firm) Stuttgart; Reclam, Philipp, jun., publisher, Leipzig)

found: Neue Brockhaus, 1960v. 5, page 383 (Philipp Reclam jun.; founded 1828 in Leipzig; in Stuttgart from 1947-1959 as Reclam-Verlag GmbH. [no publs. in LC database]; in 1959 again took the former name of the firm)

found: Directory of publishing, continental Europe, 1992#1968 (Philipp Reclam jun. Verlag GmbH)

found: Wikipedia.de, April 3, 2007(Philipp Reclam jun. founded 1828 in Leipzig; home branch continued to operate out of Leipzig until March 31, 2007, under the name Reclam Leipzig, when it moved to Stuttgart and merged with the West German branch which operates out of Stuttgart under the name Philipp Reclam jun.; Reclam Leipzig will continue as an imprint for belletristic.)

found: Welt.de, viewed Octrober 13, 2023:(Der Reclam-Verlag wurde 1828 in Leipzig von Anton Philipp Reclam gegründet. Nach dem Zweiten Weltkrieg führte die DDR Reclam als Staatsbetrieb weiter. Die teilweise enteignete Verleger-Familie ging in den Westen und es kam zur Spaltung des Verlags. Nach der Wiedervereinigung firmierte Leipzig als Zweigstelle des Stuttgarter Unternehmens. Im März 2006 wurde das einstige Stammhaus in Leipzig geschlossen). - https://www.welt.de/newsticker/dpa_nt/infoline_nt/boulevard_nt/article182552996/Reclam-Museum-oeffnet-in-Leipzig.html

[The following is a valid AACR2 heading: Reclam-Verlag.]
[Although the word "merged" is used in one source, Reclam Leipzig (Firm) appears to have continued operating as a branch of Philipp Reclam jun. (Firm) rather than being part of a true merger.]
[Reclam-Verlag usage continues to appear on pieces after 1959; unclear whether and when a true name change occurred.]