Need some help getting the right embossing index for these.....both are mispelled BROOKFILD.....the closest index I can find is [450] but the blue one has no shop number on the front dome. The yellow greenie has a shop number (large backwards 3) on the top of the rear dome. After closer examination, these both came from the same mold.....there's no mistake about it, there are certain characters that match exactly, especially the position of the tilted T in PAT JAN 25 1870 on the rear domes. Thanks for looking.