B+W 010 UV-Haze F-Pro (43mm) brand_Rollei and at least 4 distinct

and at least 4 distinct materials

though it appears that the tiny viewfinder mirrors have become unglued in the roughly 90 years since the camera was made

The GR III is a unique little camera with the form factor of a point-and-shoot and the real capability and image quality of a big camera

The Lowepro Pro Trekker 450 AW is what you might call a "full sized" camera backpack

Actual item is substantially similar

B+W 010 UV-Haze F-Pro (43mm) brand_Rollei and at least 4 distinctB+W 010 UV Haze F Pro filter for 43mm filter threads. A high quality filter for everyday lens protection. Image is for illustrative purposes only. Actual item may vary.