Photo of the day: Mark I tank at Hatfield Park

Today’s POTD ties in with the previous post about the 100th anniversary of the first tank trials at Hatfield Park in 1916.  This photo comes from the book “Eye Witness” by Ernest Dunlop Swinton.  We found the image at this website.  For those interested in checking out “Eye Witness” by Swinton, the book is available for viewing online at the Hathi Trust Digital Library site.