Please help me identify my bike! I was given this and added seat/wheel security clamps. The person who gave it to me had it for years and has no idea when its from. I have never sold a bike but have a helmet, lock, etc. Advice needed please! Thank you (The words on it read: marin eldridge grade)

Please help me identify my bike! I was given this and added seat/wheel security clamps. The person who gave it to me had it for years and has no idea when its from. I have never sold a bike but have a helmet, lock, etc. Advice needed please! Thank you (The words on it read: marin eldridge grade)

by SimilarPhotograph267