checked what I've seen

Tallied the doubles I have already observed from the An Anthology of Visual Double Stars. Some 94 viewed or imaged.

There were 7 misses, i.e. pairs I could not split. 

The 175 from the book are over the entire sky so unless I get south of the equator, 33 are off-limits to me. I was pleasantly surprised. I've seen 53% of the total; or 66% of the northern hemisphere doublets.

It's also intriguing. It sounds like that are some good ones I've missed!