Seen here is some variation in the chair key. This is an actual 'spring'keyed between the rail and chair.

Date: 2012-09-25
Owner: Sanket Gosavi
Size:
Full size: 1280x940

Photo Properties
Summary  Details
Make Canon Model Canon PowerShot SX260 HS
Aperture Value f/4 Color Space sRGB
Flash No Flash ISO 100
Metering Mode Multi-Segment Shutter Speed Value 1/320 sec
Digital Zoom Ratio 1 Date/Time 2012 Sep 25 10:18:27 +0100

Comments
Wonderful observations and capture!
Posted by Shirish Paranjape on 2012 Dec 09 12:19:37 +0000