Lionel included sheets of billboards in some postwar sets, as well as offering them through offers and with catalogs. The “311” sheets were actually printed by Essany Printing Company. Many sets included sheets of billboards; see them HERE
Examples of the offerings are shown below


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1949 ESSANY PRINTING SET
1950 ESSANY PRINTING SET
1951 ESSANY PRINTING SET
1952 ESSANY PRINTING SET
1953 ESSANY PRINTING SET a
1953 ESSANY PRINTING SET b
1954 ESSANY PRINTING SET
1955 ESSANY PRINTING SET a
1955 ESSANY PRINTING SET b
1957 ESSANY PRINTING SET
1960 ESSANY PRINTING SET
1961 ESSANY PRINTING SET
311-25 TARGET RANGE
CELANESE-FORTREL BILLBOARD
DEALER DISPLAY BILLBOARDS (more information is requested)
JUST LIKE REAL TRAINS
WITH MAGNETRACTION SMOKE WHISTLE
LIONEL FOR RAILROAD REALISM (D-310)
MORE CLIMB SPEED & PULL
PUFF CLEAN WHITE SMOKE
BUILT-IN REMOTE CONTROL WHISTLE
KNUCKLE COUPLERS
1949 ESSANY PRINTING SET

1950 ESSANY PRINTING SET

1951 ESSANY PRINTING SET

1952 ESSANY PRINTING SET

1953 ESSANY PRINTING SET VARIATION A

1953 ESSANY PRINTING SET VARIATION B

1954 ESSANY PRINTING SET

1955 ESSANY PRINTING SET VARIATION A

1955 ESSANY PRINTING SET VARIATION B

1957 ESSANY PRINTING SET

1960 ESSANY PRINTING SET

1961 ESSANY PRINTING SET

311-25 TARGET RANGE

CELANESE-FORTREL BILLBOARD


Front Side

Back Side

Box
Courtesy of The Leverich Collection
JUST LIKE REAL TRAINS

WITH MAGNETRACTION SMOKE WHISTLE

LIONEL FOR RAILROAD REALISM (D-310)

MORE CLIMB SPEED & PULL

PUFF CLEAN WHITE SMOKE

BUILT-IN REMOTE CONTROL WHISTLE


KNUCKLE COUPLERS

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