Minolta Meter 10 degree Viewfinder or Viewfinder II Attachment?

[Robert Hooper]

I have the discontinued Minolta Flash Meter V, but I'm looking for a 10 degree spot reading attachment for it. I see there are two choices. One is the Minolta 10 degree viewfinder attachment and the other is the Minolta 10 degree II viewfinder attachment.

Will either of these work on my Minolta Flash Meter V or not? If not, what is the difference between the two attachments which look the same?

Thanks.