Helmet number query ?

[slayer]

Hi all I have a SDM40 Heer maker marked that I can barely make out Q6 something the next digit is hard to read maybe try a magnifying glass.
And T1355 on the rear of the rim of the helmet, is this number a batch number does it sound right with the T in front of the number ?

Thanks.

[Schwerpunkt]

Hi all I have a SDM40 Heer maker marked that I can barely make out Q6 something the next digit is hard to read maybe try a magnifying glass.
And T1355 on the rear of the rim of the helmet, is this number a batch number does it sound right with the T in front of the number ?

Thanks.

No problem