Ybarra tea tinbox

Ybarra used to be an argentinian tea's brand. I bought this small tinbox yesterday (measurements: 4cm x 4 cm). I think it's from the 1970's or 1960's but I'm not sure. The woman whom I purchased it told me it belonged to her grandmother but i can't say this is true. The tinbox is a little bit rusty on the inside and the corners but its condition is acceptable.