Peoples signatures can change substantially from time to time. I myself have received a few calls from my bank over the years questioning whether my signature on checks was genuine because they aroused suspicion.
You have a good bank. They SHOULD check signatures but all too often do NOT. I had to challenge a check that had been debited from my checking balance, when only after I had requested a copy of it did I see that it was not my check. It had someone else's name and address on it, some entirely different signature that was not even remotely close to any of the letters in my name, and was payable to a company name I had never heard of. The only thing that matched my account was the number printed at the bottom. The bank agreed it was fraud and refunded the lost money, as I recall around $600, but they could not explain how such a bad fake could have made it through the system.
I don't claim to be an expert in handwriting, and it's true as you say that signatures can change over time. However, if it is the same person, in my experience, a certain style that existed let's say early in life, is very likely to still exist many years later in life. Any good bank looking at these two example signatures would have to be suspicious.
That's why it would be nice to know if the first example above is more recent, that is, to be found on a docuмent that is not very old, and if the second example is from an earlier docuмent and therefore written by a younger person -- assuming it was the same person writing it as the person who wrote the first example. For if the first example is on a docuмent from say 40 years ago and the second example is from a docuмent of 5 years ago, to me, that would be a serious red flag.
Signatures can change over time, but it's hard to imagine how this signature could change from the first example into the second example at a later date.
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