Set Name and 1st Use Date is unknown. I suggest the set name should be BRITISH ARMY (as per the postcard of the same design no 112) The card is from the Artistic Series 293 and the Artist is Harry Payne. The card measurements are 9.5cm x 13.8cm. The card is gilt edged in gold.
Card Title: 7th Hussars
Card Comment: A merry Christmas to you
Please let me know if you have any queries
Thanks
Jack