Stop 1 is the Arch located in front of Corning Incorporated's headquarters building at Riverfront Plaza.

The arch features Carder Steuben glass mosaics and other artifacts from Building 21, which was part of Old Main Plant. Building 21 was considered the original headquarters building, until the Houghton Park complex opened in 1957.

Frederick Carder

The mosaics you see in the arch here were originally made by Frederick Carder. Who was he? Well, Carder was a respected artist who used chemistry to create new colors, shades, and iridescence. Iridescence is the use of special metals or spraying glass with stannous chloride or lead chloride to achieve a rainbow/shimmering color effect on the glass, the glass must be reheated in a reducing atmosphere setting (meaning as the glass is reheated the atmosphere is reduced to prevent oxidization of the glass).¹ With this new technology and design, Carder

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1. "Iridescence", Corning Museum of Glass: Glass Dictionary, https://allaboutglass.cmog.org/glass-dictionary/i#taxonomy-term--5531