The tank, more than likely, is out of certification. They need to be hydrostatic tested every 5 years. That tank is not worth what you'd have to pay to get it re-certified. The regulator doesn't look to be in good condition either. I wouldn't use any of it for beer dispensing if I were you. Find a welding supply place and see what they say about swapping out that tank. They typically don't care about cert dates and broken handles and will give you an even swap for another 2.5 lb tank, if they even have them.