An early 18th century German knife

An early 18th century German knife, fork & spoon in a fitted case, each engraved with a matching coat of arms, (the spoon with a wavy end - the knife and fork with London handles and steel blade & tines) town mark a tree, possibly Fichtach (Bavaria) or Feuchtwanger, (Franchin) unascribed 1700-1720, the case 8.5in (21.5cm) long.