Linoleum?

Linoleum is a floor covering made from solidified linseed oil (linoxyn) in combination with wood flour or cork dust over a burlap or canvas backing.

Vinyl floor covering displaced lino in the 60’s , but is often incorrectly referred to as linoleum. The two materials are quite different.

Look at the beautiful designs of this vintage linoleum in the work of the celebrated Australian artist Rosalie Gascoigne (1917–1999)

The linoleum in Betty Jo designs is predominately from the 40's and early 50's (with some contemporary Marmoleum).