Marathon is one of the best game series for MAC, but not all series has avaliable in original form in the internet.

I`m Looking:

1) Marathon Original Floppy Release (21.12.1994)
2) Marathon Original CD Release (20.04.1995)
3) Marathon 2: Durandal Original Release (24.11.1995)
4) Marathon Infinity Original Release (15.10.1996)

with document(Box, Floppy/CD, Manual, etc) scans if possible.

On the Macintosh Garden has avaliable next versions:
Marathon beta version
Marathon CD-RIP version (maybe, from later release CD version)
Marathon 2: Durandal CD-RIP version (maybe, from later release CD version)
Marathon Infinity CD-RIP version (maybe, from later release CD version)

Do not offer source-ports(like Aleph One), custom mades, re-releases, etc.
Offer originals only.

How to identify Release version:

For Floppy - Look at file dates. Very later file date can be determined as last record date at the floppy, but need screenshot for accurate indentification.

For CD - Put CD in CD-ROM Drive. Use UltraISO and see on File->Properities. Look at Tome. Next step sort files and folders on Date/Time and see all folders and files, carefully watching on the last file dates(UltraISO see Time/Date as YYYY.MM.DD).