Zipper Loop, Imperial    More

Zipper Loop is the most widely available oil lamp in classic Carnival Glass. It is found in marigold and smoke in a variety of base diameters, heights, and base sizes ranging from 4 inches to 6 1/2 inches. Size seems to make little difference in value. Collectors appear to choose lamps with better iridescence regardless of size. The finger lamps, shown at left in photo, are particularly desirable. Zipper Loop was reissued by Imperial in both marigold and smoke, with the IG mark part way up the inside of the base.

Hartung Book Three: Zippered Loop

Lamps, small, 7 1/4 inch tall, 4-inch base

Marigold, 225 (2009), 275 (2010), 275 (2012),
   225, 300 (both 2013), 350 (2014),
   180, 275, 375 (all 2016), 120, 200, 450 (all 2017)

Smoke, 400 (2006), 270 (2015), 300 (2017)

Lamps, medium size, 4 1/2-5 inch base

Marigold, 140, 160, 225, 230 (all 2013),
   120, 165, 250 (2014), 110, 200, 230 (all 2015),
   120, 140, 160 (all 2017)

Smoke, 295, 500 (2011), 275 (2012), 175 (2013),
   225 (2015), 375 (2017)

Lamps, large size, 11 1/8 inch tall, 5-6 inch base

Marigold, 140, 150, 160, 425 (all 2013),
   205 (2014), 160, 180, 225 (all 2015),
   130, 155 (both 2016), 235, 300 (both 2017)

Smoke, 190 (2011), 475 (2012),
   160, 375, 675 (both 2013), 100, 250 (both 2015),
   150 (2016), 525 (2017)

Lamps, finger, 4--4 1/4 inch base

Marigold, 290, 325 (both 2012),
   250, 320, 450 (all 2013), 425 (2014), 475 (2015),
   195 (2016), 200, 275, 325 (all 2017)

Marigold, 3 1/2 inch base, 425, 800 (both 2012),
   350, 550 (both 2013), 250, 275, 550 (small, 2015),
   300 (2017)

Marigold, 4 7/8-inch base, 335 (2016), 850 (2017)

Smoke, 900 (2010), 300, 600, 650 (all 2012),
   525 (2013), 475 (2014), 700 (2015), 400 (2016),
   325 (2017)

Updated 8/6/2017