You searched for:
“filigranophilists”
One who is very fond of of watermarks: Collecting such designs that had been pressed into paper, often on stationery, and could only be viewed against light was the hobby that Mary had and she found out that she was a filigranophilist!
This entry is located in the following unit:
philo-, phil-, -phile, -philia, -philic, -philous, -phily, -philiac, -philist, -philism
(page 24)