It's a post-1979 Olds, likely manufactured recently. I'll bet that the bell engraving says "Olds", rather than "F. E. Olds & Sons". It looks like a modern Blessing variation made in China, perhaps serviceable, perhaps not. The valve block looks identical to a Blessing cornet that I had several years ago. The valves moved nicely, but one was misaligned. After I corrected that, intonation was still not that good.
Is the trumpet pictured above serviceable and playable? Maybe. My first trumpet was one of the worst musical instruments ever made, and Charles77's is probably much better, but I still developed and improved my skills on it. I upgraded to an intermediate horn after a year when my band director told me to get rid of the one I was playing.