Need help to identify P.T.B. maker mark from St. Petersburg

[C.J.]

If someone can identify this P.T.B maker mark, from a St. Petersburg box, please help. I'm trying to find it from sometime and no clue.

Thanks
Regards,
C.J.

[AG2012]

Hi,
Registered but unknown maker in PL numbers 1398 and 1399.
Active 1889-1892.
Regards

[C.J.]

Hi,
Registered but unknown maker in PL numbers 1398 and 1399.
Active 1889-1892.
Regards

Thanks for your fast answer.