Featured Mass Produced Costume Jewellery?

Hello
Amongst my Grandmother's costume jewellery she has quite a few Ciro pieces. I think I may have shown the necklace when I first joined the forum but I have since found a matching brooch that is quite lovely. Were these pieces mass produced and is there a market for them?? They seem really well made.
Thank you

 

A quite sweet set.

Debora

 

There's absolutely a market for Ciro and Trifari. That's the wrong box.

 

you have a lovely Trifari set and it has a market, the pieces you have are mass produced, but still highly desirable, wrong box though though

 

Oh. Thank you. I thought the box seemed too small for the necklace.
I found another Ciro piece. They seem to be breeding! Lol.