Both were brown with surface rust before sand blasting, wire brushing then putting a protective coating on... Took about 10 minutes... Then give it a couple of hours for the rubbed on coating to dry...
The rear drop outs are stamped COLUMBUS (known for manufacturing high quality bicycle steel tubing...)
Best guess in that these were made in the 80s. Miele was a Canadian based company making bikes in Canada. Miele is also the name of a German company that made bikes from the 20s to the 60s. Don't know if the two companies are connected...