1936 Luger stamped symbols?

[NJG26Capricorn]

Hello All, My name is John,
I am new to the site and just had a few ?'s

The symbols stamped on the right side of the firearm and barrel I assume are factory markings as to what factory it was made?

I will post some pics ( and trying my best to draw the marking)

If someone knows these symbols and what they mean or where I can reference some markings to compare?

Thank you,










Also I have this 1938 Luger with a fancy looking gold eagle and a swastika under the eagle. ( all matching parts s/n 4797)
The bottom of the clip has a wood finger grip (but s/n on it is 2861 with a symbol under it i cant make out.(I assume they used wood to cut down on use of metals later in the war)
As far as the gold symbol, Is this something found on an officers model? or is this something added after factory by another person to personalize it so to say?



One last ? ,
I have a P.38 luger all matching parts s/n but I do not see a date stamped anywhere How can I tell what year this Firearm is?



Thank you for any help, John