Optic and Buttons, Imperial
Optic and Buttons has a series of narrow flutes topped by a band of small, hexagonal buttons. The rosebowl is probably the most frequently seen shape, the cup and saucer set is quite rare. A number of pieces in this pattern have Imperial's Iron Cross mark.

Hartung Book Three: Optic and Buttons

Rosebowls

Marigold, 20 (2016), 10 (2022)

Bowl, small berry

Marigold, with Iron Cross mark, 18 (1994)

Bowl, 7 1/2-8 inch

Clambroth, 15 (2018)
Marigold, 10 (2008)

Bowl, 9 inch, with underplate

Marigold, 18 (2001)

Chop plate, 11 inch

Marigold, 30 (1995), 45 (2019)

Cup and Saucer sets

Marigold, 385 (2012), 250 (2017)

Cups

Green, 14 (1997)

Marigold, 55 (2005), 15 (2018)

Creamer, pedestalled

Clear/white, 45 (1993)

Plate, about 7 inches

Clambroth, 5 (1999)

Marigold, 40 (1996), 2 (2000)

Smoke, 230 (1999)

Plate, 9 inch

Marigold, 65 (2000)

Goblets

Marigold, 75 (2016), 90 (2022)

Wine glasses, 5 1/2 inch

Marigold, 40 (2003), 85 (2017)

Water pitchers

Marigold, 300 (2014), 250 (2020)

Updated 12/14/2022

 Salt dip (above), pedestalled

Marigold, 325 (2019), 250, 300 (both 2021)

Claret glass, 5 1/2 inches tall

Marigold, 75 (2002), 45 (2020)