Original oil and gas trade magazine vintage ad for BONNEY FORGE AND TOOL WORKS, INC. Welding Fittings Division, of Allentown, PA. Short Nozzles Don't Pay...Bonney Weldolets Do! Weldolet Welding Fittings. Unique 1955 old petroleum industry magazine advertisement. On the reverse side is an ad for THE BRISTOL COMPANY of Waterbury, CT. How Much Do You Know About Recording Pressure Gauges? Pictured is a Bristol Pressure Measuring Element, Bristol's Diaphragm Measuring Element, and Bristol's Single-Bellows Type Element. Bristol Recording Gauges for recording, automatic controlling, pneumatic transmission and telemetering. Bristol Points The Way In Human Engineered Instrumentation Automatic Controlling, Recording and Telemetering Instruments. Unique 1955 old petroleum industry equipment magazine advertisement. Approximate size 9 x 12 inches.