what is the age of this bike ...serial #4H460o00
This is from the Old Roads site.
Huffy Serial NumbersDetermining a Huffy's age requires two steps:
The last digit of the year of manufacture can be determined by the first digit of the serial number. Then you have to look for other characteristics to determine the decade of manufacture. Example: Your serial number starts with "5"Your cycle has 26 x 1.75 tiresYour cycle has a built in tankThis would be a cycle manufactured in 1965
Here is the site too.