Jaques In Statu Quo set, late 19th century

My third Jaques ISQ - and my first with locking brass bolts on the side of the case, as well as extra holes for the captured pieces. Stamped "Jaques" rather than "Jaques and Son", which made me think this was earlier than it actually is - but I was corrected by a fellow collector who said it was from the late 19th century, based on the design of the pieces. The board is 12" x 9 3/8" once opened, with kings 0.59" tall (0.86" including the peg), with a diameter of 0.84".