I'm still dumb as to why his threads are showing in his picture above if the spoke is 269 mm and it's on the front hub. I have three boxes of Union spokes and nipples from an old Schwinn shop and these 10 19/32 spokes were used on the 26" middleweights.
I just looked at the bike that I took the 271.5mm spokes out of, and looked at a spare one of the replacement spokes I bought to repair that wheel. The "new" spokes are 269mm. Threads are showing on both the new spokes and the old ones. It is more than enough to hook your finger on, but maybe a bit less than on spleeft's wheel.
On the new 269mm replacements the spoke does not enter the head of the nipple until the threads disappear, so my spokes apparently don't reach far enough, new or old. I am tempted to take a tire off and look, but the tubes have a bunch of sealant sloshing around in them.