Thank you all so much for imparting such a huge amount of information and going into such detail regarding my vase. I truly appreciate your knowledge and opinions and have/am learning so much from the discussions.
Phew.. I'm glad to know my vases are Monart. Sue, you were absolutely right, I was beginning to think I may have inadvertently accumulated some oddities, so thank you so much for pursuing it and understanding where I was coming from.
Gary, Frank, , thank you for trying to help me understand and for going to so much effort to explain to me - and I'm sorry I've caused confusion. I have taken a while to respond because I have been searching for pontil marks (thank you Gary

) to try and see where I was not understanding what you meant. And I think I've finally realised what you meant. It
is unusual to find a vase with a shiny polished flat base (not an applied base or foot) but with a finely ground out pontil mark that is not a
button pontil mark. I think I've got that right?
Frank I've read loads more information on your site in the process, so thank you so much for sharing that information. I love knowing 'where' my pieces come from and having some history is hugely informative.
Gary, thank you for putting pics on and going to so much effort to direct me. I've looked at all your pics, to try and work out where I was misunderstanding and it has helped very much. In the process, I did find this one which appears to also be a double ground pontil mark albeit on a piece that I think has an applied foot?
http://glassgallery.yobunny.org.uk/displayimage.php?pos=-18229I believe my other three vases conform to the pontil marks shown by Gary in their various guises (two button, one ground in a shiny base on a posy with an applied foot), it just seems to be this one that is slightly different.
My vase is proudly on display as centrepiece, with the other pieces in my collection

I've learnt loads in the process of this thread, so thank you all.
m