Frankenstein:The True Story - question

[willie oleson]

I saw this back in '81 (it was shown right after Beulah Land on Belgian television) and although I don't remember much of it I know I found it to be very scary at that time.
There was a scene with Jane Seymour and I think she was getting dressed for a wedding or a ball.
Then suddenly one of the maids accidentally removed the necklace (or some kind of fancy ribbon) from her neck so we get to see this horrible scar, as if the head had been sewn back on the body. I think what follows is a decapitation but I don't remember who/what/why.

The VHS release is still popping up on various market-place websites every now and then but it seems that this version has been heavily edited.
So my question to those who have (seen) the VHS edition:
Do you recall anything of the scene as described above?
Any help would be very much appreciated!

[Jay!]

I wish I could help you, but sorry, it's been a while since I've seen the film. It's one of my favorite Frankenstiens.