Antique Antique 1800’s Mackay Cunningham & Co. silver master butter knives set in case

Antique 1800’s Mackay Cunningham & Co. silver master butter knives set in original black case! In great condition for the knives! Box is hanging on together with duct tape as shown in the photo, and has some holes in the satin fabric inside. See last photo from Google AI info about them made for the Queen! Also note makers stamps are there on the knives backs, and this is a very rare item! Kept in my family since that time! Would like it to go to someone that will cherish it and show it off! Box measures 9” X 3.5”. Box has a small latch on front and royal blue velvet fabric under the butter knives.