I'm hoping for assistance in pinning down the decade of this Lion of Troy dress shirt. Black Tie Guide has a couple photos of a "Lion Brand" shirt that seems similar but I can't make them big enough (with enough definition) to see if it's the same shirt. They attribute their shirt to the 1900s. That website also states dress shirts that buttoned down the back were introduced in the 1890s, were the predominant choice in the 1930s, and were manufactured into the 1960s. As you can see, this shirt came with two Arrow DeLuxe collars from Cluett, Peabody, and Co. Inc. The shirt is heavily starched and has some yellowing in places. I'd love to give it a soak and then take it to a local dry cleaner for professional laudering and pressing... will I ruin it if I do that? Thanks!