
I had try Helvetica but is closed to 80%
and also try identifont, myfont, whatthefont,fontedge but not avail.
May have been created custom. Here's a tool to help you do that:
http://www.indiscripts.com/post/2012/06/indyfont-build-opentype-fonts-fr...
Evidently, ham radio operators have a need for fonts with slashed zeros and have websites listing common ones, but I didn't find a match on any of them, nor on any of the major foundry sites.
Here you go -- a collection of fonts with slashed zero for Amateur Radio http://www.k8zt.com/zero.html May not be a perfect match for all details of your image but at least they have this feature and you don't need to modify a font.
Don
Captured from commoncrawl.org on 18 Apr 2015. original URL