I have some slates here left over from an order (I don't normally do them) from about 12 months ago,
11 of 19.7 by 14.7
6 of 20.7 by 20.7
3 of 30 by 19.7
and 6 heart shaped (?) ones labelled as 16 by 16.
£75 for the lot, plus postage.
Postage will depend on how you want them sent! DHL on the backs Morroccan Mules, or "Wing and prayer carrier" etc.
Janners