Now the search function in my shop isn't very grand (wish Highwire fixes it someday), but diligence paid off, and there it was ... Design 501. The same; No. Similar; Absolutely.
Both are nice A-Line designs with comfortable fitting short sleeves and back zipper closure. Both are knit in Fingering Yarn and Misses sized 32-34 and 36-38.
I come across this type of 'differences' constantly in the Mail Order patterns. Pattern A has a slight difference to Pattern B. I imagine this partially occurred because of the constant business requirement to have 'new' patterns in the newspaper every week. I'd also think, like an idea, there can be so many variations on a good design.
These are both intermediate to advanced Designs; the directions are extensive. But, what great designs that I'd think you'd want to wear for years.
Thanks for dropping by,
Lorrie