I'm not a good picture taker and am struggling with these particular coins.
The difficulty is trying to get the true color.
I'm reluctant to post images knowing the color can be a factor.
If the members here are willing to help just on details alone, and don't place importance of the color, I'll try to shoot something acceptable and post when I have something useable.
The measures for the 1863:
19.1 mm Dia, 2.1 mm Thk, 4.73 grams and Specific Gravity is 9.096
The measures for the 1890:
19.09 mm Dia, 1.45 mm Thk, 3.06 grams and Specific Gravity is 9.0
Both have plain edges and coin orientation.
If color is not a factor, I do have other pictures that show better detail, just let me know if any other photos would be of interest.