What are AE-7 and AE-15 paints?

Добрый день. Smile

According to Vahlamov and Orlov, АЭ-7 was the pre-war “Защитная” green oil paint.
Both АЭ-7 and AIIЗ green nitro-cellulose lacquer were defined as “Защитная” and both were formulated around 1937.
Was АЭ-7 the same colour as AIIЗ green? Question

What was АЭ-15??? Question

Pilawskii is using AEh-15 code for his “Factory Green”- some kind of dark green used on MiG-3s. Confused

What were these two paints used for? Were they used for metal surfaces only? What planes were painted with АЭ-7 and АЭ-15???

Could anybody complete or correct following list of pre-war АЭ oil enamel paints:

АЭ-6 ??
АЭ-7 Защитная (зеленая)
АЭ-8 Алюминиевая серебрянка
АЭ-9 Светло серая
АЭ-10 Темно серая
АЭ-11 Черная
АЭ-12 ??
АЭ-13 ??
АЭ-14 Голубая
АЭ-15 “Factory green” ?????

Thanks. Smile

С уважением,
KL

The main question is:

What is AEh-15? Is there any reference to this paint in old technical literature or new research?

Is AEh-15 a real colour or Pilawskii's fiction?

Following is what Pilawskii says about pre-war MiG-3 colours in his SAFFC book:

It looks that he had to invent "Factory Green" because his AII Z (also known as "lime green") was too bright and didn't conform with photographic evidence.

In 2008 Pilawskii has modified some of his colours in his Digital Colour Chips Table. AII Dark Green is almost the same as AII Green, "Tractor Green" is now "Industrial Green", but enigmatic "Factory Green" remains the same!