https://upload.wikimedia.org/wikipedia/commons/4/42/BBC_Master_Compact_%28Amazing_Radio_modified%29.jpg
BBC Master Compact
By James Cridland, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=25278429

https://chrisacorns.computinghistory.org.uk/Pics/MComp3D.jpg
https://chrisacorns.computinghistory.org.uk/Computers/MasterCompact.html

https://www.computinghistory.org.uk/det/2817/Acorn-BBC-Master-Compact/
https://www.computinghistory.org.uk/userdata/images/large/81/94/product-78194.jpg