Help please cat cams

[lukerobz]

Hey guys i have just taken some cat 421 cams off ebay is their any way i can tell if these cans are genuine cat 421 cams the one cams has markings but doesnt match up to anything on the website cheers

 

[lukerobz]

On the cams it says f4re 863

 

[masekwm]

Call CatCams?

 

[Dan@SJM]

There should be numbers scribed into them

 

[Mr R.]

These where my 421's