Open Rose, Imperial   Updated 12/5/2011

This is actually the same pattern as Imperial's Lustre Rose, though collectors have traditionally referred to collar based bowls and plates as Open Rose. I follow the simple rule--if it's collar based, it's this name, everything else is Lustre Rose. Imperial and several succeeding glassmakers reproduced this pattern. Above are a handsome 9-inch plate in purple and a large bowl in teal.
Plates, 9 inches

Amber, 65-100

Amber, electric irid., 1,700 (2005), 460 (2007)

Clambroth, 65 (1998)

Green, 45, 260 (both 2008), 50, 220 (both 2010),
   45 (2011)

Helios green, 50 (2005), 15 (2006), 35 (2011)

Marigold, 40-70

Purple, 575, 600, 850, 1,000 (all 2008),
   800, 1,150 (both 2010), 875 (2011)

Smoke, low ruffled, 260 (2004)

Berry sets, 5-7 pieces

Green, 50-80

Marigold, 50-70

Purple, 250 (2007), 85 (2009)

Bowl, small berry or sauce

Amberina, 110 (2003)

Amberina, reverse, 120 (2004)

Blue, 800 (1999), 1,100 (2000), 500 (2009)

Blue violet, 425 (1998)

Green, 18 (2006), 25 (2008)

Marigold, 10-15

Marigold on milk glass, 110 (2002)

Olive green, 6 (2009)

Purple, 185 (2007), 55 (2011)

Smoke, 100 (2006), 18 (2009), 35 (2010)

Bowl, 7-9 inches, collar base

Amber, 48 (2007), 50 (2008), 20 (2009),
   40 (2011)

Aqua, 100 (2003)

Blue, 180 (2009), 45, 75 (both 2010)

Blue, powder, 75 (2006), 300 (2010)

Blue, smokey, 90 (2004)

Clambroth, 25 (2007)

Green, 25 (2008)

Helios, 75 (1999)

Lime, 10 (2006)

Marigold, 20-30

Purple, 38, 50, 95 (all 2008), 215 (2009),
   90 (2010), 50 (2011)

Smoke, 20-35

Teal known

Vaseline, 95 (1999)

Basket, whimised from bowl

Red, damage, 565 (2001), 165 (2002)

Centerpiece bowls, see Lustre Rose.

The Open Rose rosebowl was crafted from the larger collar-based bowl.

Rosebowls

Amber, 225 (2009), 10, 35, 50 (all 2010),
   20, 25 (both 2011)

Green, 45 (2003), 20 (2004)

Helios green, 23, 25 (both 2005)

Lime green, 200 (1998), 220 (2002)

Marigold, 15-25

Olive, 50 (1998)

Purple, 125, 450 (both 2004)

Smoke, 200 (1998), 95 (1999)

Teal, 160 (2002), 28 (2011)