This thread is to move a topic from my 'Floppy 1.44 Mb HD module' thread and add a bit more detail.
I have an image file of the below TOS ROMs:
As you can see, they are ether 'burn once' PROMs or EEPROMs (no UV windows). On which I'm guessing the .41 version number means it's a patched 1.04 (System Info shows the TOS version to be 1.04 dated 06-04-1989, GEM is 0.15 from the same date and AES is 1.40 no date).
The motherboard is a C070523-001 Rev D (I have no idea of the year of manufacture) but it is an STFM board. However, there is no Blitter chip and no place to fit one, no DMA sound (according to System Info) and no 'Cookie-Jar' whatever the hell that is (I'll do a search)!!
The ROMs were fitted by an Atari specialist shop as part of a 1.44Mb HD floppy upgrade, along with a 1990 Atari branded C302096-001 "Ajax" chip (TC24SC060AP-002) and an Elco HD module (thanks Ralcool for the info on that). From my vague recollection, the patching was to improve the HD floppy access but in what way I have no idea (did I mention my recollection was vague
If anyone is interested in a copy of the image file for research purposes/historical value, let me know by PM (unless of course, I'm not allowed to distribute the file in which case all this is moot).