Hi all !
23-11 = prototypes
23-11M = MiG-23M
23-12 = MiG-23ML
23-12A = MiG-23MLA
23-14 = MiG-23P
23-18 = MiG-23MLD
23-19 = MiG-23MLAEh
23-21 = MiG-23S
23-22 = MiG-23MLAEh-2
23-37 = MiG-23MLG
23-47 = MiG-23MLS
23-51 = MiG-23U
23-57 = MiG-23MLDG
32-23 = MiG-23BN
32-24 = MiG-23B
32-25 = MiG-23BM & MiG-27
32-26 = MiG-23BK & MiG-27K
32-27 = MiG-27D
32-29 = MiG-27M
32-29L = MiG-27ML
32-31 = MiG-23K (project)
23-11 = prototypes
23-11M = MiG-23M
23-12 = MiG-23ML
23-12A = MiG-23MLA
23-14 = MiG-23P
23-18 = MiG-23MLD
23-19 = MiG-23MLAEh
23-21 = MiG-23S
23-22 = MiG-23MLAEh-2
23-37 = MiG-23MLG
23-47 = MiG-23MLS
23-51 = MiG-23U
23-57 = MiG-23MLDG
32-23 = MiG-23BN
32-24 = MiG-23B
32-25 = MiG-23BM & MiG-27
32-26 = MiG-23BK & MiG-27K
32-27 = MiG-27D
32-29 = MiG-27M
32-29L = MiG-27ML
32-31 = MiG-23K (project)