I have a question about a prop I inherited from my pop. Its a McCauley Met-L-Prop 1A90 / CF7443. He had it on his sea plane back in the 60's, it did contact the ground and curled the tips. I straightened it out about 20 years ago and bolted it to my boys wall in their room. A friend of mine recently noticed it sitting in my building and told me it may be collectable? Can anyone help me on this prop, any info would be greatly appreciated. Thanks!