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Spring pressure behind metal guides insures an all-weather seal against winter cold or summer heat.

Sash can be painted quickly, without the inconvenience or danger of ladders and scafolds.

Operating R.O.W wbtdaws perrnit fu.ll clwi,e of weatlrcr sal or natural air circu.lation-d,epending on thc weatlrcr !

Operating R.O.W wood windows permit air circulation druing the seasons when neither heat nor cooling is necessary. Wood is a highly efrcient insulator. It, behngs in fine air-conditioned homes. The beauty of carefuIly milled wood blends naturally with residential firrnishings. Cleaning or painting reurovable R.O.W windows is easier. Yet, they cost no more than other good windows.