## speakers:
## 4x Celestion greenbacks, G 12 M. 25watt, 16ohm, bass resonance: 75 c/s
## down left: JC 15 R T1511, Insp. 79 , conecode 17 102 014
## upper left: GC 1 K T1511, Insp. 58 R.G.
## upper right: O 1 L T1221, Insp. 44
## down right: GC 1 R T1511, Insp. ??
two questions:
what does the letter following the day number mean? (R,K,L and R)
what might the coding found on the T1221 (upper right) mean??
and a third one
what is the difference between T1221 and T1511 ?
