Московский метрополитен / О. Емельянов, Л. Карпухин. (OCLC #869836375)

I am puzzled by RDA 3.4.5.9 which describes how to record plates, but also says to disregard unnumbered sequences of plates unless (a) they form a substantial part of the resource, or (b) include a plate that is referred to in a note. In practice, I am continuing to see even small numbers (8, 16) of unnoted plates recorded in the extent. Do you still record them?

This book about the subway system in Moscow was about half made up of plates, so I was able to record the “55 unnumbered pages of plates” without worry.