LIBERTY was a weekly features and fiction magazine that aimed at the mass market in American life and culture. It had some excellent material and art, but it was not aimed at the high end. It lasted from 1924 to 1950, and a nostalgia-oriented version was revived in the middle of the second half of the 20th century. Here's a page about the magazine that gives you a feel for the title.
Dorye Roettger's book Rivals of Rockwell
has over 90 very-large-format, beautifully printed glossy illustrations from old LIBERTY covers (cropped to delete the logo, and sometimes a bit oddly) -- and it's not very expensive. After you've looked at the description of the book, you can find some issues on Amazon while you're there, but the best place to look for old issues of the magazine is eBay.
Dorye Roettger's book Rivals of Rockwell

-
Liberty 1924-06-21
4808 visits
-
Liberty 1924-09-27
3715 visits
-
Liberty 1924-10-04
2694 visits
-
Liberty 1924-10-18
2545 visits
-
Liberty 1924-11-01
2325 visits
-
Liberty 1924-11-15
2865 visits
-
Liberty 1924-11-22
2451 visits
-
Liberty 1924-11-29
3715 visits
-
Liberty 1924-12-06
2888 visits
-
Liberty 1924-12-13
2213 visits
-
Liberty 1924-12-20
225 visits
-
Liberty 1925-01-03
1929 visits
-
Liberty 1925-01-17
2085 visits
-
Liberty 1925-01-31
1783 visits
-
Liberty 1925-02-07
3293 visits
-
Liberty 1925-02-14
132 visits
-
Liberty 1925-02-21
1663 visits
-
Liberty 1925-02-28
2341 visits
-
Liberty 1925-03-07
2358 visits
-
Liberty 1925-03-14
4031 visits
-
Liberty 1925-03-21
1846 visits
-
Liberty 1925-03-28
1322 visits
-
Liberty 1925-04-04
1485 visits
-
Liberty 1925-04-11
1345 visits
-
Liberty 1925-04-25
1536 visits
-
Liberty 1925-05-02
3844 visits
-
Liberty 1925-05-16
2252 visits
-
Liberty 1925-05-23
1407 visits
-
Liberty 1925-05-30
1609 visits
-
Liberty 1925-06-13
1711 visits
-
Liberty 1925-07-04
1613 visits
-
Liberty 1925-07-11
1769 visits
-
Liberty 1925-07-18
1373 visits
-
Liberty 1925-08-01
3035 visits
-
Liberty 1925-08-08
1751 visits
-
Liberty 1925-08-15
1524 visits
-
Liberty 1925-08-22
1397 visits
-
Liberty 1925-08-29
1830 visits
-
Liberty 1925-09-05
3016 visits
-
Liberty 1925-09-19
1566 visits
-
Liberty 1926-02-13
2174 visits
-
Liberty 1926-03-20
3078 visits
-
Liberty 1926-04-03
3445 visits
-
Liberty 1926-04-17
1106 visits
-
Liberty 1926-06-06
1277 visits
-
Liberty 1926-11-06
2567 visits
-
Liberty 1927-07-23
2241 visits
-
Liberty 1927-07-30
2083 visits
-
Liberty 1927-08-06
1906 visits
-
Liberty 1927-08-20
2004 visits
-
Liberty 1927-08-27
1889 visits
-
Liberty 1927-09-10
1930 visits
-
Liberty 1927-09-17
1883 visits
-
Liberty 1927-09-24
1633 visits
-
Liberty 1927-10-01
1794 visits
-
Liberty 1927-10-08
1972 visits
-
Liberty 1927-10-15
1729 visits
-
Liberty 1927-10-29
1952 visits
-
Liberty 1927-11-12
2188 visits
-
Liberty 1927-11-19
1676 visits
-
Liberty 1927-11-26
1584 visits
-
Liberty 1928-01-07
1444 visits
-
Liberty 1928-03-17
1350 visits
-
Liberty 1928-04-26
1689 visits
-
Liberty 1928-05-05
1277 visits
-
Liberty 1928-05-12
1168 visits
-
Liberty 1928-05-26
1417 visits
-
Liberty 1928-06-09
1328 visits
-
Liberty 1928-06-16
2170 visits
-
Liberty 1928-06-23
1971 visits
-
Liberty 1928-06-30
1513 visits
-
Liberty 1928-07-07
1250 visits
-
Liberty 1928-07-14
1351 visits
-
Liberty 1928-07-21
1670 visits
-
Liberty 1928-08-04
1204 visits
-
Liberty 1928-08-11
1197 visits
-
Liberty 1928-08-25
2002 visits
-
Liberty 1928-09-08
1248 visits
-
Liberty 1928-09-15
1100 visits
-
Liberty 1928-09-22
1131 visits