According to Planopower, Honda model HRX217 TDA with MAGA 1225712 were made from 2004 to 2007.
The manual was printed in 1983. See link below:
on the mower deck
It is the model number
04072157
You could check with the Old Lawn Mower Club
Write down the serial number which should be printed on a serial number tag somewhere on the mower. Take the number to your local John Deere dealer and they should be able to tell you what year your mower was produced.
606
That would depend on what sort/make/model of mower it was and what country it was made (and possibly sold) in.
2004
Usually on the bottom of the seat.
I have been told it is the first two numbers in your serial number.
form_title= Honda Lawn Mower form_header= Mow your lawn easily with a Honda lawn mower. What is the square footage of your lawn?*= _ [50] Do you need to repair an existing lawn mower?*= () Yes () No Do you want a push or riding mower?*= () Push () Riding