I have a pre 1800 razor that is pretty much the same. There is a lot of taper in the tang and the tail is very thin. It looks to me like someone restored the blade a long time ago because of the way the blade flows into the tang along the cutting edge and bottom of the tang. It would not be a deal breaker for me. It may also not be true because I am not particularly well versed in the era of straight razors.