Lufthansa operated 14 different Lockheed Constellation/Starliner aircrafts between 1955 and 1968.
Registrations used for the various models were:

Super Constellations L-1049
D-ALAK, D-ALAP, D-ALEC, D-ALEM, D-ALID, D-ALIN, D-ALOF, D-ALOP, N1880, N6921C (leased).

Starliners L-1649
D-ALAN, D-ALER, D-ALOL, D-ALUB.

In the collection 8 of the 14 aircrafts are represented.

D-ALAK
Construction number 4602, model Lockheed Super Constellation L-1049G.
Delivered 1955.
In service until 11th of January 1959 when it crashed in the sea upon approach to Rio de Janeiro.

D-ALAP
Construction number 4637, model Lockheed Super Constellation L-1049G.
Delivered 1955.
In service until 1967.

D-ALEC
Construction number 4640, model Lockheed Super Constellation L-1049G.
Delivered in March 1956.
In service until September 1968.

D-ALEM
Construction number 4603, model Lockheed Super Constellation L-1049G.
Delivered in 1955.
In service until 1967.

D-ALID
Construction number 4647, model Lockheed Super Constellation L-1049G.
Delivered in 1956.
In service until 1968.

D-ALIN
Construction number 4604, model Lockheed Super Constellation L-1049G.
Delivered in 1955.
In service until 19xx.

D-ALOP
Construction number 4605, model Lockheed Super Constellation L-1049G.
Delivered in 19xx.
In service until 19xx.

D-ALER
Construction number 1041, model Lockheed Starliner L-1649A.
Delivered in September 1958.
In service until March 1960 when it was transferred to Condor.

Unidentified registrations

Interior views of Lufthansa's Lockheed Constellations

Lufthansa operated 24 different Boeing 707 and 8 Boeing 720 aircrafts between 1960 and 1984.
Registrations used were:

Boeing 707:
D-ABOB, D-ABOC, D-ABOD, D-ABOF, D-ABOG, D-ABOS (rrg D-ABOV), D-ABOT,
D-ABUA, D-ABUB, D-ABUC, D-ABUD, D-ABUE, D-ABUF, D-ABUG, D-ABUH, D-ABUI, D-ABUJ, D-ABUK,
D-ABUL, D-ABUM, D-ABUO, D-ABUY
N130KR (used for display)

Boeing 720:
D-ABOH, D-ABOK, D-ABOL, D-ABOM, D-ABON, D-ABOP, D-ABOQ, D-ABOR

In the collection 5 of the 32 aircrafts are represented.

Lufthansa operated 57 different Boeing 727 aircrafts between 1946 and 1956.
Registrations used were:

Boeing 727:
D-ABIA, D-ABIB, D-ABIC, D-ABID, D-ABIE, D-ABIF, D-ABIG, D-ABIH, D-ABII, D-ABIJ,
D-ABIK, D-ABIL, D-ABIM, D-ABIN, D-ABIO, D-ABIP, D-ABIQ, D-ABIR, D-ABIS, D-ABIT,
D-ABIU, D-ABIV, D-ABIW, D-ABIX, D-ABIY, D-ABIZ
D-ABIJ
D-ABBI, D-ABCI, D-ABDI, D-ABFI, D-ABGI, D-ABHI, D-ABKI, D-ABLI, D-ABNI, D-ABPI,
D-ABQI, D-ABRI, D-ABSI, D-ABTI
D-ABKA, D-ABKB, D-ABKC, D-ABKD, D-ABKE, D-ABKF, D-ABKG, D-ABKH, D-ABKJ, D-ABKM,
D-ABKN, D-ABKP, D-ABKQ, D-ABKR, D-ABKS, D-ABKT

In the collection 1 of the 57 aircrafts are represented.

Lufthansa operated 9 different Convair aircrafts between 1954 and 1968.
Registrations used were:

CV-340:
D-ACOH

CV-440:
D-ACAD, D-ACAT, D-ACEF, D-ACEX, D-ACIG

CV-640:
D-ACAP, D-ACIB, D-ACUM

In the collection 3 of the 9 aircrafts are represented.

Lufthansa operated 11 different Vickers Viscount aircrafts between 1958 and 1971.
Registrations used were:

VV 814:
D-ANAB, D-ANAD, D-ANAF, D-ANAM, D-ANEF, D-ANIP, D-ANIZ, D-ANOL, D-ANUN, D-ANUR.

VV 819:
D-ANAC.

In the collection 2 of the 11 aircrafts are represented.