Log plot with 5 divisions
Graph reproduced here, so people don't have to go looking



There's no line exactly halfway between 1 and 10, so 3 (a common approximation on logplots to 3.162) is not marked.

This suggests  the lines before and after the mid point are 2 and 4. Notice the first two divisions are the same width, so have the same ratio, which would support them being 2 and 4.

The next division is smaller, so it's not a factor of 2, but ignoring that and going for the next line, that appears to be the same factor of 2 distance, so is probably 8. It's quite close to 10, which sounds good. 

The line between 4 and 8, and closer to 8? It's likely to be 6. 

Measuring all the divisions and taking exponentials confirms (approximately) those guesses.