I am in search of the attached window operators. I purchased a home that has "old" windows that crank open and a few of the operators are no longer engaging the gears. I understand from my inspector and a contractor that the windows were manufactured in Minnesota by a company now out of business. I do not recall the name, however, the handle is marked "Eagle" (this is most likely the manufacturers name, I think) and the cover is marked "Truth". The gears apparently work as I am able to push open and shut the applicable windows. The gears rotate without noticing any noticeable broken teeth, so I believe that the issue is with the round insert that the crank handle attaches to, plus the associated assembly hardware (washers). I would also need to replace some of the plastic "Truth" covers and crank handles as handles currently available in hardware stores to not fit.
Thank you so much for the assistance!