$19.98 in 1924 is approximately $249 today.
Note the advertisement reads "2 Wonderful Bargains!" *hehe*
From 1924: $14.98 = $187.00, $5.98 = $75.00, $8.98 = $112.00
From 1940 Catalog: $.95 = $14.65, $1.00 = $29.00
Thrifty prices indeed!
From 1957 Catalog: $2.99 = $23.40, $1.99 = $15.60, $5.99 = $46.90
So just a quick rundown...
In the 1910s... $1.00 is about the same as $21.60 today
In the 1920s... $1.00 is about the same as $11.40 today
In the 1930s... $1.00 is about the same as $12.60 today
In the 1940s... $1.00 is about the same as $15.40 today
In the 1950s... $1.00 is about the same as $9.15 today
In the 1960s... $1.00 is about the same as $7.35 today
In the 1970s... $1.00 is about the same as $5.73 today
In the 1980s... $1.00 is about the same as $2.82 today
In the 1990s... $1.00 is about the same as $1.71 today
As much as I would like to claim I am a super genius and got all these facts and figures through sheer brain power, I found a handy dandy inflation calculator.