Here is a large boat prop. This si from a local collectors estate. This is 15 3/4 '' in diameter. The shaft size is 1 1/4 '' on one side and 1 '' on the other. I see 18 X 11 stamped. I see 11 75 mich - 18R 17. This weighs 13.2  pounds. This will make a nice decor piece as shown. This has that look. One blade tip has been repaired I see I can see a newer brass color. see picture # 11.  This is as found. There is some pitting and wear as  shown. Please see pictures and ask questions. I will combine shipping. I usually ship the next day after payment 5 days a week.