Sammyboy

Hi guys, I'm new to atarisage,so hi everybody,I was just wondering if anyone could help me. Iv got the chance to buy this jaguar prototype but i don't know if it's legit or not and I don't know anything about prototypes. Unfortunately iv only got this one picture and the console is boxed. Also does anybody know what it's worth?as I don't want to over pay. Many thanks in advance. Cheers Sam.