Guard indicators - Early ke10 ones are smaller profile, Later are bigger
Front stone tray lights - Early are smaller and clear, Later are bigger and orange
Guard badges - Some later ke10's/11's had Corolla 1200 badges
Dash - Early ke10's had an entirely different dash compared to the later model
Interior Door handles - Early had a twist door handle similar to a window winder, later model had just a conventional pull leaver
C pillar - Later model had plastic vents on the rear pillar behind the rear quarter window
Tailights - Early and later tailights are different, early are slightly smaller with the reflector being in the centre and oval, Later model had the reflector next to the reverse light and is square
Mind you, The early ke10 carried on into 1968 but with the later model dash, So they're still ke10's. Then came ke10-b which has all the later model fixtures but still with the 1100cc 1k-c motor
Then ke11 came out, with has all of those late model parts and a 1200cc 3k-c engine
Judging by your vin i reckon it'd be an early 1968 still with the original ke10 features etc just the next year. As it's supposed to be 1967's are up to about ke10-250000 and then after that is the next year