Attached is photo og the teaset.

The mark is showwn on the attached photo. [img size=321]https://kovels.com/media/kunena/attachments/legacy/images/Pottery_Mark_H_N.jpg[/img]

Thank you for responding to my post. I believe the mark between the letters may be an ampersand. If I find out how to reduce the size of the image, I will post the image.