I don't want to resurrect an old thread without reason, but seeing as the conversation about this topic ended abruptly 2 years ago without any real results, and as I was searching for this elude version of SimCity Classic myself recently after getting to know its existence, I felt the urge to register for the very reason to shed some light into this.
For anyone wondering:
I have found one of the releases where this (the Win95 version of SimCity Classic - also known as Simcity Classic 2.0) was distributed. It is definitely included in the "Sim Classics - Maxis Collections 3" disc in a folder labelled "Win95".
In another release, the "CD-Rom Classics"-Series, there is a mention in the jewelcase about installation instructions specifically for Windows 95, directing you to another folder for (what you would guess is a) Win95-version, but I have checked this version and the Win95 version is NOT included. (This is the version which jewelcase is shown in one of the replies above) Despite it saying "Installing SimCity Classic for Windows 95", there is no standalone W95-version on there, sadly.
It may also be included in the "SimCity Classic Deluxe" release from 1996/97, because that version features a "Designed for Win95"-sticker on the packaging, making me think that the W95-version is also on there. But I cannot confirm that.
To conclude..: The only release where I have successfully located the Win95 version is ""Sim Classics - Maxis Collections 3" from 1997 (bundles SimCity Classic together with SimIsle and SimTower). On this CD, you'll find both - the Win3.1 and Win95 versions, the latter one including the elusive "Classics 95" graphic set, which is a mixture of mostly graphics from the "Extended DOS CD"-version mixed with a few new graphics. It also features a different main menu, slightly different toolbars, more detailed maps and different music.