Sundials - World's Oldest Clocks

North American Sundial Society

Somerville  

Sundial 441
State/Province:  Massachusetts Country:  USA
Dial Type:  Vertical Condition:  Good
Latitude:   42° 24' N Longitude:   71° 07' W
Location:
  • 175 Elm Street at the intersection of Elston Street, south of Davis Square
 
Description:
  • This 5 foot x 7 foot vertical dial is painted onto the true south facing concrete wall of a commercial building. The gnomon and hour lines appear to be weathered copper or bronze. The hour lines are corrected for longitude, but may be in error by about 5 minutes. The dial is in relatively good condition, but the painted numerals are fading. The building itself has been in several hands over the last 10-15 years.
 
General Information:
  • Owner: Catherine Lum
  • Designer:
  • Builder:
 
References:
  • Picture is Sky & Telescope Magazine, Dec 1987. Article and picture by Roger W. Sinnott