Can’t see any month.
Attachment 579688
Printable View
Can’t see any month.
Attachment 579688
The month is indicated with the arrow. Can you take a better, more close picture? Maybe your tank was (soft) blasted to clean? In that case you lose some contrast.
Attachment 579689
This is Feb 1973
Can I have yours please :)
Attachment 579690
It’s up to you. I always search for 100% correctness, but that takes a lot of time. You can maintain a tolerance of some months. You can buy a new one like it is. You can buy a new one and develop a Feb 1973 stamp (but there will be some other small deviations too I think).
Maybe buy a new one and search for a correct one in parallel?