Konplott was established in 1986 by Miranda Konstantinidou. They have relatively small production lines. These earrings are very large, dangley clips with dark and light "amber" coloured paste stones. There is nothing like these earrings in her current catalogue - and I do not know the date they were made. They measure approx. 4 inches from top to bottom and are in good condition. I have a number of pairs of very large, clip earrings in my shop at Grays Antiques. www.gillianhorsup.com