4 vintage retro 70s patio/pool/lawn chairs

My aunt is cleaning out her home and check out these vintage gems. Four yellow plastic/metal patio chairs purchased in the year 1978. They’ve spent the last 45 years poolside in the same home. Two still have a sticker on it so assume the brand is ‘Craig Adams’. They need a good cleaning and some TLC. Please look at the photos closely. I took photos of the chair with the worst wear so you can see the lowest quality. There is also rust. A pretty cool and rare find. Price is for all 4. $55. Porch pick up O’Connor and St. Claire.