Thats old. Fender eyelets. Very English. Track, grass track, Time Trial bike. Back in the day when you would train in perhaps a 67inch gear with mudgaurds on during the week. Race a 72inch gear for grass track. Put a 88inch gear for sprints at the velodrome. And do a 100 mile TT in a 82inch fixed.
You have a gem there. Outfit it with care. Visit classiclightweights.co.uk for knowledge and hilarystone.com for parts.