The colour for the 12 unknown coins cannot be found, even on my computer.
I therefore went onto download my entire list to Excel, then by deleting information I did not need, and mainly by type being listed as empty, I came across these 12 coins.
Canada KM# 622 2 Dollars Elizabeth II (4th Portrait; 1/10 oz; Silver Bullion Coinage)
Liberia KM# 920 5 Dollars (James K. Polk)
Liberia KM# 921 5 Dollars (Zachary Taylor)
Liberia KM# 922 5 Dollars (Millard Fillmore)
Liberia KM# 923 5 Dollars (Franklin Pierce)
Liberia KM# 928 5 Dollars (Rutherford

Hayes)
Liberia KM# 929 5 Dollars (James A. Garfield)
Liberia KM# 930 5 Dollars (Chester A. Arthur)
Liberia KM# 933 5 Dollars (William McKinley)
Liberia KM# 934 5 Dollars (Theodore Roosevelt)
Liberia KM# 935 5 Dollars (William H. Taft)
Liberia KM# 936 5 Dollars (Woodrow Wilson)
Comment welcome as to what I could do next to possibly change them
I'm just a collector of coins, not a slave to it, unless I am in a coin shop.
For all you banknote collectors. Link to my swap list.
https://colnect.com/en/banknotes/list/swap_list/COINMAN1