Freon is a trade name. Most use Puron now.
A freezer from 1970 and for many years after requires R134 type freon.
No, the ice that forms in a freezer does not contain freon. Freon is a refrigerant gas used in cooling systems like air conditioners and refrigerators, but it is not present in the ice itself. The ice is simply water that has condensed and frozen due to the low temperature inside the freezer.
freezer
R134a
134a
R134a
Why 5? A freezer would/should only contain one; some variant on freon.
R134a
R134a
R134a
R134a