Here's a rewritten and improved version of the provided content, expanded to meet the 500-character requirement and presented in a more natural, human-like style:
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This is from Scott Peterson:
> More apparatus pictures of the companies at the 3-11 on October 20, 2015, at Harry’s Lumber Sales. This is part 3 of 3, focusing on specialty companies.
Scott Peterson
Below are some photos from that day featuring unique Chicago Fire Department units. These images capture some of the specialized vehicles used by the department for various operations.

*Chicago FD turret wagon 6-7-3. Scott Peterson photo*

*Chicago FD turret wagon 6-7-3. Scott Peterson photo*

*Chicago FD Mobile Comm Van 2-7-2. Scott Peterson photo*

*Chicago FD Squad 7A. Scott Peterson photo*

*Chicago FD Squad 7. Scott Peterson photo*

*Chicago FD Rehab Unit 5-7-2. Scott Peterson photo*

*Chicago FD Mobile Battery Vehicle. Scott Peterson photo*
These photos give a glimpse into the diverse fleet operated by the Chicago Fire Department, highlighting their readiness and adaptability in different emergency scenarios.
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