I decided to lay out the various track pieces and see what I really have. I found out I actually have 4 different curves as follows:
1. Older 3 tie/ section = O31 curve. Have all black ties on these.
2. Newer 3 tie/ section = O42 curve. New unused track with ties that are black on top and white on the bottom.
3. 5 tie/section = O54 curve
4. 6 tie/section = O72 curve
Now that I have these all sorted and measurements on the pieces, I plan on packaging them in separate bundles and marking the bundles with a tag.
Jeff