Very little is known about this company. According to Hazel Marie Weatherman, they were in operation during the 1930s; however, since the only trade journal reference we have found is from 1946 (uncovered through research done by Helen Jones) – and since Dell is not mentioned in the 1944 edition of the Glass Factory Year Book and Directory – it seems more likely that they were founded sometime in 1945. It isn't known how long they remained in production.
-- From The Glass Candlestick Book, volume 1, by Tom Felt, Richard & Elaine Stoer. Reprinted with permission.