Steven, Pamela, et al — Paul S has fitted out Janet's 278 / Evelyn collection with the correct flower holder for a Davidson 278, so they are all now legit, no M&Ms. It only took about 12 years.
Here they are:
http://glassgallery.yobunny.org.uk/displayimage.php?pos=-12824http://glassgallery.yobunny.org.uk/displayimage.php?pos=-12823
Bernard C. 8)