Overlaying three-cent nickels was an internal Treasury and political argument. One group, including Director Pollock, felt that except for the cent and expedient 2-cent, all base metal coins were temporary substitutes for existing silver coins. Once specie was reintroduced, base metal coins would be abandoned and replaced with 3-cent silver and 5-cent half dimes. The contrary view, by Snowden and others, was that the dime (or even quarter) should be the lowest denomination silver coins, and that base metal pieces offered advantages in convenient size, resistance to abrasion, and seigniorage over silver. Further, Joseph Wharton felt that base metal convenience in size would outweigh the inconvenience of tiny silver coins for small denominations.
Three cent CuNi coins proved to be more popular than 3-cent silver, and the public used them as replacements, not temporary substitutes. A 5-cent CuNi received the same reception. This led to elimination of half dimes and 3-cent silver in the Act of 1873.