The best place to ask is Daisy. They offer a service to estimate the value and history of old Daisy air guns and it's free. See the link below
First you have to tell us what condition the rifle is in. Is it Excellent, Good, Fair, or Poor. Without this information it is impossible to give you an estimate of the value.
What condition is it in, that determines the value.
What condition is the Daisy in? This will determine the value.
It was only made in 1967.
None of my Bluebooks list Red Ryder's or Champion by Lot number, but the Daisy web page has a free service to give you more information about your Daisy. ( See the link below.)
I assume you are asking about the 99 "Champion" not the 99 "Target special". In good condition it would be worth between $45 - $60
Daisy made several models that year. What model are you asking about?
Which model, what is the condition of the BB gun or is it a BB rifle..
20 USD
What condition is it in. That determines the value.
What condition is it in, That determines the value.