Early type oil and frame tank without the seam has had some repairs see photos 
TRIUMPH OIL IN FRAME SUMP FILTER KIT (PAPER ELEMENT) RS004
TRIUMPH OIL FILTER 83-4783 1973-83 TR7 T140V T140E TSX OIL IN FRAME MODELS
TRIUMPH T140 T120 TR7 OIF OIL FILTER SUMP GASKET OIL IN FRAME (2) A65 - 83-2829
OIL FILTER BSA TRIUMPH B25 B50 T120 T140 OIL IN FRAME MODELS
TRIUMPH T120 T140 OIL FILTER BSA B25 B50 OIL IN FRAME MODELS 19-4589 99-1179
TRIUMPH T140 TR7 OIF OIL IN FRAME FILTER + GASKETS 83-4783 83-2829 84-0027 UK
