Can You Help Me Date This Men's Suit?

[Boutique369]

Hi, I just listed this men's vintage suit in my shop that I think is probably 1960's but a few people I asked thought it was 1930's based on the metal IDEAL zipper on the pants & the style of the jacket. But the pants, in my somewhat educated but by no means an expert opinion, think pants looks 1960's. I just wanted to be sure. There are no tags of any kind to give me any cues. Grey pinstripe with 4 button closure jacket that looks a bit western but it's subtle. I appreciate any advice. Thank you. MENS SUIT HERE