I would bracket this bike as later '70 to early '71.
Resprayed of course. Note the chrome peeking out from the worn paint on the crown.
Spraying chrome usually means the chrome has a problem.
I have an earlier bike and a later bike.
The earlier frames with "clovers" in the lugs had the cutouts smaller.
This frame shows the larger lower head tube cutout AND bigger upper head lug piercing, note the seat lug has a cutout of a bit different shape, not just scale.
Note too that the outside points of the fork crown are lacking drill hole piercing details.
This would be one that could wear the "playing card" graphics... my favorite.
Water bottle braze ons are suspect, as is wears it's second coat of paint...
Fortunately a wee bit big for me... a 53.5-54 ctc or 55-56 ctt and I would have a problem.
One day I will find one.
I like the pre '74 bikes as the graphics were more to my liking and it was before Ernesto went Big, Big Time.