Clips can be found all over the internet. Just go to yahoo and type in "winchester model 88 clip". And you will get several places to buy from. But it does make a difference if it is pre-64 or post-64. I do not have a reference guide for serial numbers. You could probably drop a note to winchester, or buy a serial numbre reference manual. Hope this helps.

Ok, I did some checking. That rifle was manufactured in 1956. Hope that helps.