The ICP's shop, café, and museum will be closing early at 5 PM on Saturday, July 12, for a private event. Last admission to the galleries will be at 4:30 PM. We apologize for the inconvenience.

Registration for fall courses and workshops is now open. Register by July 15 with the code 'FALL15' for 15% off course tuition.

[Skilled worker truing balance wheels by placing wheel into calipers provided with an index that shows where it is out of balance, Hamilton Watch, Lancaster, Pennsylvania]

[Skilled worker truing balance wheels by placing wheel into calipers provided with an index that shows where it is out of balance, Hamilton Watch, Lancaster, Pennsylvania]

Image: 5 x 7 in. (12.7 x 17.8 cm)
Paper: 5 x 7 in. (12.7 x 17.8 cm)
Credit Line
Gift of the National Archives, Washington, DC, 1975
Accession No. 801.1975