Adding information to Criggie's accurate answer.
This is not the same bike but it is an Olympic and the style of decal matches your bike.
Your frame has the wrap around stays and this one does not.
I don't view an ebay post as authoritative. The add says it's a 1980 - that's possible - but it's also possible that it's more like early 80s as opposed to ...
Nice bike - from the overall lines of the frame its definitely something from the 80s.
The head tube is relatively short, so I'm guessing this is a smaller frame, maybe a 50cm or less.
The pronounced curve of the front fork became straighter as time went on due to manufacturing changes. Also the right fork tine has a lamp mount which was common for the time....
I found this article about a slightly different bike:
This bike was manufactured by Cleveland Welding (CWC) for distribution
and sale by the Seiberling Rubber Company. It is essentially a
standard issue CWC bike using the second series post-war CWC 3-Gill
pattern frame and the serial number places the build date in 1947,
probably near the middle of that ...
It looks like a well made steel frame that probably has good quality butted tubing and seems to be quite racy with a fairly tight geometry. Looking at the Campagnolo dropouts doesn't tell us much as they were in a long production over decades. The sloping fork crown and the recessed brake nuts date this to being an 80s or even early 90s race frame. The seat ...