With regard to the 1889 10 cent piece...
The mintage of that was recorded as 600 000, but I remember reading somewhere that only about 15 000 (or so) were ever actually circulated. The 1889 10 cent coin is rare, and I'm not sure why the price is not higher than that of the 1890H 50 cent coin, as this dime appears to be significantly scarcer.
The only explanation I can come up with is that people prefer collecting Victorian halves to Victorian dimes, and they are willing to shell out more to get the 50 cent pieces.
By the way, another Victorian coin that I wouldn't mind paying above trends for is the 1873 5 cent coin from Newfoundland in a respectable grade such as VF+ or higher.
Edited by kitkat1858
03/03/2011 8:19 pm