What year was your Winchester model 435 with serial number 000098 made?

I was give a winchester 435 serial 71363325 is it worth any thing and what ammo does it use.I found that the Winchester model 435 air rifle was imported by Winchester from Germany.They imported 8 different models from 1969-1973.A total of 19,259 were made during this time span.With a serial number of 98,it can be assumed that your .177 caliber pellet air rifle was made in the first year of importation which was 1969.