I have trim off at least 2 or more 73s that I can look at for ya. Just last weekend I found that trim and more up in my garage attic that I put there in 1986-7 when parted a complete rusty 73. Untouched since then in my attic.
I kept every nut and bolt, even back in those days.
I'll look and see maybe post a picture. I have more in the basement of my home.