I know my handguns and rifles, but have not really been into shotguns since I was in my teens. Now 20 years later, I think I may have the perfect excuse to get back into shotgunning.I have someone wanting to sell, best I can tell by his descriptions, a Belgium Browning Auto 5, mag 20, ventilated rib. The gun is purported to be in "brand new" condition. It was purchased early 70's, has had two boxes of ammo shot through it during one session after it was first bought, and has been cased and stored in a closet since, only taken out to oil and admire ocassionally.He said it had a "recoil pad" on it. Did Browning put recoil pads on Mag 20's in the early 70's? I'm a little concerned as I've not seen 20 ***** Auto 5's with recoil pads, but he says it has not been added, it was purchased new that way. I've seen mention of a 5/8" thick solid pad on the 20 guages somewhere?He is willing to sell it to me for $400.00. I know I can't go wrong at that price, but just how "right" might this price be if it is Pre-portugal, and made in belgium, mag 20 in like new condition? I figure at that price, even if it was a japan Auto 5, I certianly couldn't go wrong. Anything above that is gravy......Also, is there any real difference in the "assembled in Portugal" Belgium auto 5's either functionally, or value wise? I don't think this one was, but I'm curious.I haven't had a chance to look at it yet, but will next week. Just looking for some quick info in case he drops in with it unexpectedly at work over the next couple days. If it is what I think it is, I'm buying it on the spot. Poor guy doesn't know what he has.Thanks for any info. Again, I'm not extremely familiar with this, or any other shotgun, and any help would be great. Not a lot of info on the net on the 20 ***** Auto 5's, and while I've shot several of them over the years, I don't know a lot about them, other than there is certainly a devoted following to the gun.Thanks