Truly presentation quality antique sterling silver desk set.
1. Sterling dagger / letter opener with mother of pearl handle. 
2. Sterling mechanical pencil. 
3. Sterling writing pen.
4. Original leather covered fitted presentation box.
English, circa late 19th century. 
Mappin & webb silver company, probably was made for american market. 
Letter opener is marked with english sterling hallmarks on hand-guard (last picture), also marked "sterling" on blade.
Unmarked sterling pen and mechanical pencil (guaranteed 925/1000 sterling silver standard). 
Mechanical pencil is fully functional and works 100%.
All peices are made of solid sterling silver. 
  Size:
Letter opener is about 9 1/8 in. (23.2 cm) long.  
Blade is about 5 5/8 in. (14.3 cm) long.
Pen and pencil about 5 7/8 in. (14.9 cm) long.
Box dementions:  10 7/8 x 2 5/8 x 5/8 inches.
Total weight including box is about 206 grams.
  Condition:
All pieces are in excellent original antique condition with light handling marks and minor charming indication of age. 
Mechanical pencil works 100%.
Box is in excellent antique condition inside and outside, shows very light age wear.
Finest quality collectors grade set