I notice the early 20th century carmine and lake error of colors give a lot of collectors trouble. These stamps were printed accidentally with the wrong color ink. These errors mean the difference in thousands of dollars. I have seen many dealers post auctions that claim the stamp featured is the error stamp when many times it is not! I have posted here a simple color chart to give you a feel of the difference in color between the issued color and the error color. I hope this will be of some help. As I always say; Do NOT buy any of these issues without certification or the right to certification!

                            #375 Carmine Mint: $7.00               #375b Lake Error Mint: $900.00

                       #523 Orange & Black Error                            #547a Lake & Black 

                                   Mint: $625.00                                          Mint $220.00

                         #657 Carmine Rose Mint $0.65           #657a Lake Mint: $360.00 

                      #703 Red & Black Mint: $0.40       #703a Dark Lake $ Black Mint: $450.00 

                       #Q2 Carmine Mint $6.75                         #Q2 Lake Mint: $1,750.00