Hello mehdi1230,
In the 1bis picture my dowse revealed:
Green rectangle area a gold coin cache.
Blue circle is a small, silver coin cache.
In the 2bis picture my dowse revealed:
Green circle: very strong signals of multiple gold coin caches in this area.
Blue circles: Small silver and gold coin caches, more silver coins than gold.
Thanks for posting your pictures,
Jon
"Let Thy Hand, Oh God, guide me through the ways Thou seest are needed for those that seek to know Thy way through any effort of mine."