Size and shape comparisons

Images for comparison of sizes, shapes, etc. of pens… mostly.

Just some stuff I did for friends on here to answer their questions asked in private and not in a discussion thread. I didn't think it was worth it to start new threads at the time just to post them, but now that the image gallery facility is open to the rank-and-file user on FPN, perhaps this is a good place to put them, in case anyone else is interested.