Hi William,
The very early screwbacks were made of brass however the later ribbon hung issues are made of plated white metal alloy, I know this because I have had the dubious distinction of having a 1st class with swords break at the ring in shipping and it is definately not brass as a local jeweller told me it could not be soldered to effect a repair because it was white metal.
Ron
I found these images on eBay. The owner was kind enough to allow me to post them here.
I thought I'd post them since the images are so good that one can see all the nuances of this 5 (!) piece order.
"patina imparts character" - PJS
A wise man said: 'you should not pay a premium for what you want beyond your comfort level, and always ensure there is a mutually agreeable return policy.'
-First Class with and without Swords, 2nd issue and box.
-Second Class with and without Swords, 2nd issue (screw back) and box.
-Third Class with and without Swords, 2nd issue (screw back) and box.
It's a real Type 1 Variation 2 3rd Class With Swords. As for price I have purchased one for $35 a year or two ago and $45 with case. I suppose if you can get one now for $60 you're not doing too bad. This type was issued in the 1950's mainly during the earlier part of the decade.