Lot Essay
Made in 1860, this lamp is one of the last known betty lamps to have been crafted by Peter Derr. A nearly identical lamp also stamped "P.D. 1860" is illustrated and discussed in Spears, p. 165, plate 93. A related lamp attributed to Peter Derr, now in the Titus C. Geesey collection at the Philadelphia Museum of Art, is illustrated in Garvan, p. 161, fig. 14