GTs58
I'm the Wiz, and nobody beats me!
Have you found the serial number? On the 70's Atala road bikes it's on the seat tube, probably right around the clamping area. Looks like the pedals have or had reflectors so that would indicate a 70-71 or later build. Possible letter and then the serial numbers. It's said the first two numbers after the letter is the year of manufacture. C71XXXXXX would be 1971.
Other areas where serials might be located is under the crank, on the rear drop outs around the axle nuts and the head tube where the fork and handlebar stem is attached.
Other areas where serials might be located is under the crank, on the rear drop outs around the axle nuts and the head tube where the fork and handlebar stem is attached.