BoAr:Ref:FitzMac
http://boar.org.uk/repwxe1FitzMac1.htm
The Bourne Archive
Reference:
Anon. Ms.
1-2005. The Macclesfield Psalter.
(2005) 
With thanks to Wikipedia.
(Click on the image.)
CD-ROM
Electronic facsimile of 252 folios, 170 × 118 mm. Produced by the Fitzwilliam Museum, Cambridge while the book was dismantled for conservation, in 2005.