Very unique and glossy 11 by 21 inch porcelain sign - West Chemical Products Inc. Baby blue almost turquoise porcelain background and rounded corners, excellent gloss and shelving. West Chemical Products made chemicals for agriculture, pharma, and home care products. This logo was filed in the early to mid 60's, putting this sign right around that timeframe. Look up their trademarks and you may recognize their products. Brass gromets are newer and were added to protect the enamel around the mounting holes. Please feel free to check us out on Instagram @IndependentAntiques