https://steemitimages.com/DQmU9uxqBjdFag1fxrXha1MCUW6wc5VYUSARxRRy1zt3jMx/22.jpg
In my collection there are two such Orthodox cross of the 18th century. They are made of silver of 900 tests, both crosses belonged to men and are of a large size. The weight of each cross is more than 10 grams of silver; such crosses were popular in Russia in the 18th and 19th centuries. Both crosses were found using a metal detector.
https://steemitimages.com/DQmUc7fFo1Unpv27NinLooM8RF6AUyue3Rwn9a2aQbeNRJv/IMG-20180126-WA0039%5B1%5D.jpg

https://steemitimages.com/DQmetyM9mYYUrSMKzTsHpAAYUyF7YSXLUZi7Z62wg7bK3Yq/rht.jpg

https://steemitimages.com/DQmadC3gpn5JnpPgdDjUdjHZfDnMYHcWuBZYoWn9X6BRk2K/rht%5D.jpg