Some more meat-related items ...
Cinderella from Father Flanagan's Boys' Home, Boys Town, Nebraska. This seal appeared for several years in at least 2 sizes.
Cinderella sheet from The Omaha Home for Boys, circa mid-1970s, also comes in a blue/black 2-color version.
Postcard of Union Stock Yards, Chicago, postmarked 1915.
Postcard of Swift's beef cooler, probably at Chicago.
Front and back of 1902 "International Live Stock Exposition ad cover. (With scarce Barr-Fyke tassel-flag machine cancel.)
Libby's canned meats:
1956 meter slogans for the 50th anniversary of the Meat Inspection Act of 1906, parallel to the 1906 Pure Food & Drugs Act.
On to Swine .....
Non-philatelic tangent, stereocard showing hogs in Armour's cooling room.
Both sides of cover with humorous "berkshire" back flap graphic:
Front side of 5 Swift & Company covers with illustrated ads on the reverse side which follow in the same order in the 5 additional scans.
Swift #A, 1900.
Swift #B, 1900.
Swift #C, 1903.
Swift #D, 1908.
Swift #E, 1929.
Image cropped from an embossed envelope.
Buffalo, Wyoming parcel box cancel.
Marrowbone, KY, what a great town name!!
(dgwhite, when you get 50 posts, send me a note with your address and I will mail you the Marrobone cover if you want it.)