Identyfing and dating 3 SE razors

Hi,
recently I have bought 3 SE razors.
Could you help me with identifying them? What are they names?
What year they were produced?
What material they are made of?

1. That is probably GEM Damaskeene 1912 (?)

GEM_Damaskeene.jpg

2. This is probably GEM Junior 1912 (?)
GEM_Junior.jpg

3. This is probably Ever-Ready with Ornate Handle 1912 (?)
Ever-Ready.jpg

Thanks!

Attached Images

• GEM_Damaskeene.jpg (55.1 KB)
• GEM_Junior.jpg (74.7 KB)
• Ever-Ready.jpg (48.2 KB)

Identyfing and dating 3 SE razors