I've found this article about The Mysterious Crespi Collection & The Metal Library
And there is a picture of The enigmatic Crespi plate:
And it's said:
The age and origin of these items is still unknown today.
These objects show the pictures of an unknown culture.
The most well known pieces are tablets made of silver, gold foil or other alloys with unknown letters and mysterious symbols.
This is what was posted few years ago.
Is it really we don't know to which culture this seal belong to? How come?
A Crespi Gold Plate with Written and Zodiacal Characters
J. Golden Barton gives his account of visiting father crespi in Ecuador, and of all the fascinating ancient artifacts he was able to see and photograph. This was given at the Ancient Historical Research Foundation symposium held a BYU on 5-25-05
Dr. Guistavo Reinoso Hermidia, of Cuenca, and Dr. Olaf Holm, Director of the Museo del Banco Central of Guayaguil, both archaelogist. Some 8000 pieces of ceramics, including hundreds of truly superb examples, were transferred to the Museo for cataloguing.