Can anyone I.D. this part, possibly from IBM 5100

From: Wayne Smith <wsmith_at_gj.com>
Date: Mon Sep 20 17:41:43 1999

Last night I found a strange metal plate in one of the pockets of
one of my IBM 5100 manuals. It is stainless steel. Link here for
a scan:

http://home.earthlink.net/~wmsmith/_uimages/plate.jpg

Can anyone identify this? It does not appear related to
DC300 tapes. Thanks, all.

Wayne Smith

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
Received on Mon Sep 20 1999 - 17:41:43 BST