The dates and the signatures look different, Anne.

The sigs might just be upside down, but 88 is not 92.

Fleur Tookey's signature is clear and easy to read.
I've got a chart of the Glasshouse artist timeline in front of me, but am not really sure where to start, so have chosen '86. (It's not an easy thing to read.)
I can add earlier names if required later.
Bob Crookes '86
Helena Blom '87
Janusz Posniak '87 (wasn't he in "Blown Away" recently?)
Helena Kaiser '87
Misako Handa '87
Ben Duningham '89
Rob Marshall '90
Helen Millard '90
Marius Chalkadakis '91
James Watts '91
Harvey Mears '92
(post '92)
Nic Inman '93
Annabelle Walker '94
Jasemin Aslan '95