Simple (free) Version Control that lets you easily delete history?

Hi, we have a folder of very large binary assets that we need to version control. (Edit: We're on Windows for this project.)

However, to save on hard drive space, we don't want to keep every single previous version – as we check in new files and versions, we'd like the ability to prune selected previous versions. We usually only need the current version and the most recent one or two previous ones. We also often revert to previous snapshots of the folder.

Is there a free (hopefully open source?) version control software that can easily do this?

Looking at git and svn (the two I am somewhat familiar with) it seems deleting old versions is fairly complex, annoying or impossible. Since we're doing this operation pretty frequently, I'm hoping for something that caters to this more easily.

Thanks!