16th-17th century dagger to identify

[ulfberth]

Spanish second half of the 17 th C ( or could it be Portugese ? )
Its a left hand dagger to go with what the Spanish call " espada de conchas " as shown in the picture below.
Altough the crossguard does look a bit puny and its a bit out of proportion its still very appealing , I guess you have the acquire the taste for it. This dagger is in all parts Original no doubth whatsoever.
Please tell your friend I like the sabre in the picture in the brass scabbard its a French first empire sabre of the Imperial guards ( chasseur a cheval de la Garde Imperial )