For me it depends on the look of the album. For me, the early cents were too difficult to find with remaining luster, so I went with the ones with the highest level of detail. Your 1851 would fit that bill perfectly as it has stronger detail then the 1857. If you are trying to put together a large cent type set with the "cartwheel effect" (huge challenge), then go with the 1857. Or a better date type set, I would go with the 1857. They are both terrific coins!
























