I found this tweet interesting:
William H Cackett butcher, Whitemore Reans, Christmas 1904.
Pigs were displayed outside to show their freshness. Since goose was prohibitively expensive for many, a cut of pork would have been the main meat on Christmas day, since it was cheap and more easily available. pic.twitter.com/zDRgVFSQ1M
— Black Country Museum (@BCLivingMuseum) December 7, 2017
When I was growing up my mother, whose recipes dated from 1920-60, would cook a dish called Poor Man’s Goose. Given it was made from pork I always thought this was rather odd; now I’m an adult I can see the dish derives its name from the disparity in price between pork and goose.