Here we have both known HEMINGRY errors.
On the left is the CD 122  HEMINGRY. Although the price guide lists this one as having RDPs, I would consider these drip points to be SDPs.
On the right is the slightly more common CD 134  HEMINGRY. I say "more common" just because I've seen a handful over the past 20 years, whereas I've only ever seen one of the CD 122.