The listing, Beautifully Decorative Golden Cross wall hanging has ended.
It's 12 &1/2 inches long, 8 inches wide at widest.
Material is my best guess molded plastic...don't quote me though.
The writing on the back says 'Made Exclusively For Home Interiors & Gifts GIA INC in the USA.'
There are also numbers, and letters on the back, '5015-A' 'MCMXCIX'
I don't know how old it is for sure, I was told it was from Great Aunt's house who passed, so who knows you could luck out and it could be worth some $ ;o)