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Overall walk-around of a crawler-transporter tread.

Picture 3 of 3.

The lettering on the tread reads

1060
X X

I was unable to find this particular crawler tread in the Smithsonian collections database, but the Smithsonian does have a writeup about a different, but similar tread (that one appears to have a serial number of 1052, rather than 1060).

For more detailed photos of a crawler tread, see my crawler tread photos at the Kansas Cosmosphere.