15 cm SK L/45

[Dandebur]

Hello.
I show you my first case of the year 2016 :a 150X815 , 15cm SK L/45.I wonder about the stamping TRI.R.P.
My guess is that is about the powder. Can somebody confirm if I am right, and explain the meaning of this stamping?
Thanks in advance.
Dandebur.

 

[Alpini]

it's "Triglycol Röhren Pulver" the type of the propelling charge

 

[thekees]

TRI.R.P., mostly used for star shells.

 

[Dandebur]

Thank-you very much Alpini and Thekees. It is exactly what I wanted to know.
Dandebur.

 

[AZ23-28]

Is for Leuchtgranaten