---

Does anyone have a list of the various unit-tray size standards and which museums have taken them up?

I have been doing some measuring of unit-trays that I have been given by a few museums and there seem to be at least 3 groups in the UK:

Cardiff/NHM-1? - 82mm wide, 32mm high
Cardiff/NHM-2? - 85mm wide, 34mm high
Oxford - 91mm wide, 39mm high

:)