1001700 These convex glasses were bent in our glass room - they are good for replacement of old barometer glasses, each one does vary slightly in diameter and height so if critical contact us. Our sizes are approximate, advise us if small tolerance. They are designed to be fitted with plaster of Paris from the back of the bezel so edges are rough as cut and will not snap in the front - that type requires making specially. Cost of delivery is included hence the higher price, if more than one required then e-mail us for a price. We also have some slightly smaller high dome although these are quite high - not the modern shallow dome ones
