Antique silver-plated set of cutlery for fish in an original oak box

Antique silver-plated set of cutlery for fish in an original oak box, which is closed with a key. A set of excellent quality, consisting of 25 items. The set was made in England, Sheffield in the late 19th or early 20th century.
The 25-piece set consists of:
12 table knives, approximately 20 cm (7.8 inches) long
12 table forks, approximately 17 cm (6.7 inches) long
The dining items are in excellent antique condition (see photos and videos).
1 Wooden storage box is in excellent condition (see photos and videos).