The first and taller one is a Canadian Maple Leaf. 30mm.
The second and smaller one is set with 4 semi-precious stones. 20mm.
Both are for 1.1/8th steerer tubes.
The spacers have an oxidise patina on some surfaces and are polished on others. This has been done by allowing some to patina over time. If you purchase them and would prefer them to be shiny silver, just ask and I will polish them for you before shipping.