Older article.....but cool story.
https://www.wearethemighty.com/articles/this-50-cal-fought-for-90-years-without-needing-repair
https://www.wearethemighty.com/articles/this-50-cal-fought-for-90-years-without-needing-repair
In more than 90 years of existence, the receiver with serial number 324 has never been overhauled.
"Looking at the receiver, for its age, it looks good as new and it gauges better than most of the other weapons," said John Clark, a small arms repair leader.