United States # 4917-20a
(49¢) Hudson River School Paintings
Imperforate Mint Block of 4 Stamps
# 4917 - Grand Canyon by Thomas Moran
# 4918 - Summer Afternoon by Asher B. Durand
# 4919 - Sunset by Frederic Edwin Church
# 4920 - Distant View of Niagara Falls by Thomas Cole
No die cuts.
Mint condition, never hinged.