That's why I suggested Kelley....but others made the beveled end bars. Many of my early frames were split bottoms. Don't like them. The bees sometimes make queen cells up in the space between the bars. Difficult to see when they're very young.Is one side of the outer edge of the endbars at the top beveled and the opposite flat? I can’t tell for sure from the photos. If so, Kelly used to make them that way.
Agreed. I bought a load of them one time. Didn't like them either. In addition to hidden queen cells, those bottom bars were more difficult to attach securely. I ended up putting a brad in each and then a couple horizontally through the end bars.Many of my early frames were split bottoms. Don't like them.