Hi Nic, thanks for your response. I guess it does explain things, it does paint a pretty bad picture.
I will hold my hand up and admit that for a while, I did go along with what seemed to be the "norm" on ebay, putting "Holmegaard" or "Holmegaard?" in the title for coloured cased glass, "Loetz" in the title for Art Nouveau glass, etc. Usually in the description I would try to state the likelihood that it was Holmegaard, i.e. "possibly", "probably", or list other possible manufacturers. As I grew more knowledgeable and came across manufacturers such as Elme, Alsterfors, Ekenas etc I realised how many listings on ebay, including my own, were inaccurate, and I have since tried to correct these mistakes.
From time to time people do email me to point out an error in a listing, and I am always willing to update a listing for better accuracy, especially if their claims can be verified, and have done so several times. I honestly do not remember you emailing me Nic, but if for whatever reason I didn't respond, I am sorry for that.
I also really don't remember buying the red vase listed as Hirschberg, and relisting it as Holmegaard. If this happened then it certainly wasn't on purpose. I buy a lot of glass from ebay, and it used to be quite a while till I got around to relisting it. Maybe I forgot about your original description and just went along with listing it in my usual way back then. Also if I removed the label then it was probably because I felt a partial "Foreign" label wasn't all that important, or maybe I didn't remove it, but didn't show it in the description.
If it is agreed now that this design (the one shown in the ebay listing) is by Hirschberg, I will of course update any current listings, and I am grateful for the correct attribution.