P Z4746 - frame of 1985
We can choose between EMC models:
- 3-Athlete (should have lugs with cutouts)
- Corsa (lugs with cutouts and the indication C - around the indication P)
- Professional (Columbus SL)
- Professional (Reynolds 531 - designation R near designation P)
- Pro SLX (designation X near P and break bridge "flat bottom")
- Pro 753 (break bridge "flat bottom")
Check the lugs and break bridge - that's where to start...