Here are some photos I took of the Fairchild C-123 Provider examples at Pima Air Museum, Yanks/Chino, March AFB, Robins AFB, Titusville, Castle AFB and the NMoUSAF. It appears the Providers at Yanks Air Museum and at Pima rolled off the assembly line consecutively (54-0580 and 54-0581).
C-123B 55-4505
Pima Air Museum 2017
C-123K 54-0612
March AFB 2018
C-123K 56-4362 “Patches”
NMoUSAF 2018
C-123K 54-0580
Pima Air Museum 2017
C-123K 54-0581
Yanks Air Museum, Chino 2018
1954 C-123K 54-0674 #20123
Valiant Warbirds Museum 2024
UC-123K 54-0633
Robins AFB 2024
C-123K 55-4512
Castle AFB, Atwater CA 2024