Some Part numbers for you:
(I do have all of them Shrinked Wrapped as shown in my latest Video). Hope that helps.
Warp 4, German: PN: 22L3550. W/O G444889, Rel.: 4
Warp Server 4 Advanced, German: PN: 28H5685, BTCH: M444320, REL 0400
Warp Connect Blue Spine, German: PN: 07H9800, BTCH: M273780, REL 0301
Warp Connect Red Spine, German: PN: 07H9847, BTCH: M783510, REL 0300
Warp Blue Spine, German: PN 24H1282, BTCH: M250240, REL 3001
Warp Red Spine, German: PN 19H5077, BTCH: M428460, REL 3001
OS/2 2.11, German: PN 63G3901, BTCH: M505350, REL: 2110
OS/2 2.0, German: PN: 14G0715, BTCH: M190350, REL: 2000
OS/2 1.3, IBM Extended Edition, GErman: PN: 87F1002, BTCH: M920410, REL: 1300
PC DOS 2000, German: PN 04L5573, Rel: 1
PC DOS 7, German, Upgrade CD ROM: PN G466697, Rel.: N/AP
I have no idea what the BTCH Number is used for. May be shows date or something else of the production/creating time?