Early 1900's Art Nouveau 14k Yellow Gold Pins & 8k-12k Yellow Gold Lavalier Pendants to Restore

A very nice variety of early 1900's jewelry crafted of yellow gold (stamped & XRF tested). Features 2 art nouveau pins crafted of 14k yellow gold. The pins weigh 3.7 grams total. Three lavalier pendants that need to be restored crafted of 8k to 12k yellow gold (tested). One of the lavaliers is adorned with an old cut diamond. The lavaliers weigh 3.9 grams total. This is a very nice group of antique jewelry.