Two Antique parfum bottles

Here I show you two antique perfume bottles. One of which can be worn as a pendant.
The first bottle is made of what I think Ivory with silver cap and two silver round decorations.
The second bottle (pendant) is made of Horn (I suppose) and inlaid (pique) with (I think) copper wire and round ivory dots.
Two beautiful small bottles , the horn bottle has some wear traces. Anyway very nice collectors items !
Has one of the collectors on this site some idea of value and time period?