Sure - you'll see the heatstamp in the pic below.
As for our discussion on the spine, I'm not sure what you mean by language issue...? The screenshots in my earlier post were extracted from US websites (one being Yoogiscloset), so it's not a translation error for sure, if that's what you mean.
Also, "Spine" is an oft-used term amongst TPFers in the Hermes discussion forums (which i frequent as well

), where it's widely understood that depending on the provenance of the goathide, the leather can exhibit different characteristics, some of which include spine-like veins running down the centre of the bag. You'll see screenshots where TPFers have used that term below

You'll also notice they don't use the term with Apostrophes because well, it's a thing and is quite well understood amongst Hermes fans (including me) so I don't blame you for not being familiar with it
I've also provided a clearer picture (I hope) of the spine in a brown goatskin Hermes HAC bag in case you didn't catch it earlier (see the pattern running down the centre?).