I don't know whether JJ1 HH95 ever had an official physical release on floppy. I suppose it was only ever distributed through BBS systems and sent out to common shareware distribution channels, then redistributed with magazines and shareware CD's and the like.

As for the retail JJ1, it was originally just self-distributed by Epic MegaGames through mail order. Later there were some licensed redistributions in several countries, such as the common "Best Buys" edition in the Netherlands. I don't have the original floppies and JJCD at hand but if you link an image or eBay sale we should be able to determine here whether it's original or not.

JJ2 was published by GODGames in the US and Project2 in Europe. TSF was only distributed by Project2 in select countries and by LK Avalon in Poland. I don't think it was ever republished by any third party except much much later by GOG for digital release. This means that it should be quite easy to find original copies. However, some jewel case releases are the OEM version which is an earlier version of the game selected to be distributed with some Intel hardware stuff. Again, link an image or eBay sale and people here could check.