WW1 memorabilia, 1917 diary, letters home, written postcards, bible and more

Extremely rare opportunity to own a piece of WW1 history. This is a collection of items owned/written by Private John (Jack) Field, who served in the Royall Army Medical Corps, first in Mounted Divisions and then on Ambulance Trains.
This collection features:
10 letters, 8 of which in the original active service mailing envelopes, from Jack to his fiancee Marjorie, all written during the War while Jack was serving abroad.
Photograph of Jack Field, flanked by three colleagues, in front of the ambulance train and dated 1915.
Studio photograph of Jack Field in uniform, signed on the front.
14 postcards of France and Italy all with messages from Jack to his fiancee Marjorie and posted during the war from his active service, some to Jack from a French penpal.
Jack's pocket diary dated 1917
New Testament, with printed message from Lord Roberts and inscribed with "Pte Field, No. 10 Ambulance Train 1914)
Post war (1925) Royal Army Medical Corps Training Book, inscribed with Jacks name.

Also included are Jacks Memories typed up many years later - All of these have been received from Jacks Grand-daughter.