something sounds funny here. isn't the 1 after the C what tells ya the year? i'm pretty sure it does which is why it comes up as a 71. because that vin is a 71 vin.
Sometimes…….. Back in the day, if you bought an early production car (for example, buying a 71 in September of 1970), clerical errors were made. Remember things were done by hand back then.
Not saying this is what is going on here, just saying that it is a possibility.
VIN LH23C1R147020 would clearly be on the title (showing a 71), if the title shows 1970 it is clearly an error. The title has probably been wrong for the life of the car.
