This baby-AT case I have seen in two versions, this (2 5,25", 2+1 3,5" sections) and larger [1, 2] (3 5,25", 3+1 3,5" sections). I have in my collection two small such cases and one larger. All of them are bundled with identical 200W Linkworld OEM PSUs (very poorly made).
The first small case (on the photo) was used in a 1997 build from Russian company Formoza: Lucky Star 5I-VX1F, ceramic Pentium MMX-200 @ 166 MHz (I don't know why the CPU was underclocked), 2x32 MB PC66 SDRAM, 3dfx Banshee 16MB, SB AWE64 Gold, other parts (HDD, CD-ROM and FDD) were already lost when the PC had been found by me. Now the VX-motherboard is replaced with a LS 5MVP3, as it is better than the 5I-VX1F.
The second small case is a original build from 1998 (built by Formoza too): LS 5VP3, PPGA MMX-200, 32 MB SDRAM, SiS 6326 4MB AGP, ES1868, Fujitsu 3GB HDD with Win95 OSR2.1, SyncMaster 550s and serial Genius EasyMouse.
The larger similar case (with a "crystal" label on photos) is a custom build from approx. 1998: LS 5I-TX2A, PPGA MMX-200, 32MB SDRAM, Matrox Mystique, SB AWE64, 3 GB Fujitsu HDD (the original OS was probably DOS 6.22).
Other my OEM cases I haven't shoot, I'll made photos and descriptions later.
2×Soviet ZX-Speccy, 1×MacIIsi, 1×086, 1×286, 2×386DX, 1×386SX, 2×486, 1×P54C, 7×P55C, 6×Slot1, 4×S370, 1×SlotA, 2×S462, ∞×Modern.