Cards of the first type actually appeared last, as a series of views of Paris starting with low numbers follwing the end of WW1. Some of them give the publisher's name as above on the address side.
During WW1 JMT produced a number of Patriotic cards with the diamond logo. The second example card commemorates the first battle of the First World War. The siege of Liège was from 5 to 16 August 1914 and held up the German invasion of France. Liège was awarded the French Légion d'honneur in 1914. Later WW1 cards use the graphic letters JMT without the Paris. Some of wartime cards have on the address side the crest of the Chambre, and others printers' names Artige Aubenas or M Hanouart Nanterre.