Externally the camera is in superb condition. 
Technically it is fully working without any flaw.
The lens is clean, no fungus, clear, no dust.

Comes with lens cap and original pouch.

The viewfinder is clear.
Focus movement smooth and even.
The light meter and aperture setting is functioning as it should.
Zoom is functional in manual and auto mode, smoothly.
Clean battery and film compartment.
The shutter is operating as it should.

The Canon 310XL Super8:
It's based on the great 514XL, with a faster f/1.0 lens. Very lightweight and straightforward camera. It only needs two AA R6 batteries, light meter included.

Shipping:
Free shipping worldwide in double-padded boxed with extra protection, tracking and insurance. Usually takes about 10-15 days to reach the USA or elsewhere worldwide. Shipping within Europe is faster. Please include your phone number in the order details, that can help your local delivery service (optional).

Returns:
Accepted as per ebay policies, please contact me first if there is any issue. It is always sorted out, you won't lose money, ebay protects buyers well.

Testing :
Selling all kinds of photographic equipment from France for more 15 years, I now deal only in Canon Super 8 cameras : 310, 514, 814. I have sold many of them, I know where flaws occur, where are their weak points, I can detect them and state a clear description. I test them with a film cartridge inserted - I do not process this film, but little can go wrong with a new Super8 cartridge. Please feel free to contact me if you have any questions.