The coating on the set of three is the photo resist, I didn't bother removing it after etching, makes a good protective layer to help against corrosion, especially if it's going to sit for a while..It's not too bad to solder on top of, I use a Haako set around 550 degrees, gives a bit of a poor mans solder resist otherwise..can be scrubbed off with acetone, or polished off with a scotchbrite pad, tin if you want.. their your's now..
The single one was Toner Transfer.. not very good..traces should be widened up a bit, and a little more isolation, especially on the one end with three small traces to make it a little more 'idiot proof'..
I did a quick silk screen for these, but all I had was 160 line silk, results on a few trials came out 'fair'.. either a wider [024, 020 ??] trace would work better, or 255 line silk to get proper definition.
You should have mentioned you needed some 2313's.. I've got a few dozen left over from a old satellite project...let me know if your's are going to take a while to come in..mail got there faster than I expected it would..
how's the code coming??
enjoy.