Under the link, pictures of and comments about the "Rejuvenator board" are found, a relatively rare hardware expansion for the Amiga 1000 that allows the use of a 8372B-BigAgnus with up to 2 MB of ChipMem. Additionally, the board possesses a battery backed-up clock, 256/512 KB ROM socket and an A2000 video slot. The 512 KB on the mainboard are bound as FastMem or used as ROM. The use of Kickstart disks is still possible.
Pictures of the board and more information can be found in this
topic at the A1k.org forums.
Source:
http://www.amiga-news.de/en/news/AN-2005-10-00044-EN.html