For a snapshot of grocery prices in 1948, this add for McCanns supermarket appeared in the November 15, 1948, issue of the Pittsburgh Press.  (You can click on the ad to view a larger version.)

Prices were high after the war, but there’s also been a lot of inflation since then. According to this online inflation calculator, one dollar in 1948 was the equivalent of $11.48 in 2021 dollars. So to get a true picture of what things cost, you need to multiply these prices by 11.48. Therefore, the dozen eggs sound pretty reasonable at 99 cents, but that’s really $11.36 in today’s money. In other words, it’s almost a dollar per egg! And the bacon at 75 cents per pound works out to $8.61 per pound.

To my taste, the smoked beef tongue doesn’t sound very appetizing. But at the equivalent of $4.48 per pound, it’s the cheapest meat they have. On the other hand, I could probably afford the apple pie for 49 cents ($5.62 in today’s money), so maybe I’ll just have that for supper. The minimum wage at the time was 40 cents per hour, so I could get that for working just over one hour.