Based on a a composite of museum examples and dated to the second half of the 16thC.  This left hand dagger or main gauche would be used in conjunction with a rapier and was typically English.

Double edged 25cm blade

This dagger comes with a steel locket and chape as standard on a leather sheath.

Specification

Grip length – 10cm
Blade length – 25cm
Overall length – 37cm
Blade thickness at hilt – 6mm
Handle components – Steel