I of all the US types of coinage out there do not know much about the "Longacre" Cent, However I also would like to comment on the die breaks on both coins. I too feel your coin is 100% an EDS, compared to the other.
I see your coin has the clear as day break, "very" similar to the counter Brockage error coin you purchased, however, the breaks IMO, are similar but were struck hundreds, if not thousands of coins apart, also the breaks are oddly different in the most minute ways.
If you really examine the coins and the breaks, I believe you will also concur, I think from reading the post, many seem to feel the coins were struck very soon after another, I do not believe this to be a fact, while I am not trying to rain on this great find and super likeness to one another, I just know errors and die breaks and how they progress, Yes this is a very rare find, but I would like to hear from some of the error specialists about just how far apart "they" feel these were struck apart, this too would be another opinion, but I am NOT an expert on errors like Mr.D etal.
To address the possibility of the Obverses being the same, I would agree the probability is very high this would be of the same Obverse, Hence the date probability is strongly possible.
I would also like to know the "Most likely areas" that die breaks appear on this type coins Reverse? Please do not misunderstand my statements on this topic, I am a collector/Numismatist in training for four-decades and love the information I can obtain from just reading from the "experts" here everyday!!
I again would like to give my congrats on this pair of what I would call a rare set of relatives, LOL, LOL....Mike



















