I'm quite new in Numista and begun to load/manage my Peru-Collection.
In the "1 SOL 1965-1975"- section I noticed the following error: Numista lists 1 SOL 1967 with the variety having the engraver's signature (Armando Pareja) on obverse. But this variety belongs to the year 1966 as you can see in the following images:

This variety is known in Peru as "doble Pareja" taking into account the engraver's name which appears under the back legs of the Vicuna on the reverse (as all 1 Sol and 1/2 Sol coins of this series do).
I do not know this "doble Pareja" variety in 1967 1 Sol coins.
Best regards