Week three 'C' was found in discarded metal shavings, created from drilling into metals leaving long threads of spiral shavings. Upon closer inspection I noted the curve...hmmm 'C' for curve! Alittle bend back and forth on the long thread, and a bit broke off...the birth of my 'C'.
Week four letter 'D' . Somewhat dissapointed on my rust hunt with only finding some old weathered leather straps and buckles from horse riding gear. I had to take a closer look to see what I could do. Of course! The 'D' ring on the strap!