You can still find a few rubber handled (Safe-Grip) carbon steel 'Made in Gladstone, MI' Fieldcraft, etc, models - the first run was up there (MI UP). The current 'Safe-Grip' models have SS blades and were made in the PRC.
Now, if you like the older Marbles production, check out 'DLTTradingCompany.com' or 'knivesshipfree.com', they both have them. They also have more modern MI UP knifemaker goodies - from ex-Marbles folks - Bark River and Northwoods Knives. All are great folks to deal with - and no 'evil-bay' worries, either - they are real companies... one even headed by a minister!
Also, check out the 'Marbles, Northwoods, etc' sub-forum over at knifeforums, for more info on your possibly fake-Marbles.
Stainz