Original oil and gas trade magazine vintage ad for OIL CENTER TOOL COMPANY of Houston, TX. O-C-T. Proposing is One Thing, Executing is Another. Long ago a group of mice gathered to discuss ways to eliminate the constant danger posed by a cat. After much debate, a mouse suggested that a bell be hung on the cat so that everyone could hear the cat approach. The plan was cheered until an old mouse arose and said That is a Fine Plan, But who Will Bell the Cat? This unique 1962 old oilfield petroleum well equipment magazine advertisement would display beautifully matted and framed. Nice graphics.