All the Christmas business cards I am listing provide a record of Great Depression supply chain diplomacy during a sometimes difficult time for businesses.  These cards were correspondence with a particular Glass Company called Liberty Glass in Sapulpa,  OK.  They span the years of 1930 to 1938, the latter being the year of the "recession in the Depression."  Liberty Glass became one of the premier manufacturers of commercial milk and soda bottles in the US.  These cards were sent to the head of Liberty Glass, George F. Collins, Sr. from the executive leadership of primary raw materials and equipment suppliers.  Heavy industries maintained vital economic relationships with appreciation and gratitude and sometimes self-deprecating "hard luck" humor and "dark" humor through corporate diplomacy during the Dust Bowl era and through the great Depression.