Old Antique Vtg Ca on sale 1870s Mounted Photo Two Barges With Large Derrick Unusual

This offering is for an antique 19th century mounted photo. The image is on sale of two large wooden barges on what is probably a river. There is also what appears to be a derrick on the front of the left hand barge. The image contrast is weak and it's hard to make out exactly what is going on. The length is app.8" by 10" including the mount. The image size is app. 4.75" by 6.75" The mount also has wear, losses and a corner that was taped back on.