I have a Chile 1 peso or 1/10 condor which just has the number B1 and no serial numbers. This issue seems to have Series A, B, C and D with 1 to 70 for each. (Series E wasn't issued). There must have been many notes with B11 as mine - how common is it to have no serial numbers and how does this work in practice?
I don't deal in world currency, so don't have any idea on the serial numbers. What does the B 11 signify? Possibly a note that wasn't meant for circulation, so didn't go through the last printing?
Billete Provisional means provisional ticket. Since this is 1943, maybe it's some kind of military WW2 scrip?
According to Variety Vista it is listed as a standard banknote https://en.numista.com/catalogue/note258392.html
If it's not American, I haven't a clue. There are many knowledgeable collectors here that will though wait and see. Good luck.
It is not unusual for low denomination notes issued in high quantities to lack serial numbers. The issuer probably decided it was not worth the effort to keep track of the notes. The US fractional 5, 10, 25 and 50 cent notes of 1862 lacked serial numbers - and 50 cents in 1862 was about the equivalent of $10 or more in todays money.
Thankyou all, it appears that a lack of serial numbers is more common than I expected. This seems to be the case for short-lived and/or low denomination notes which may just have block numbers rather then serial numbers which would make production cheaper and easier. This is often the case during periods of hyperinflation or during war (the Mexican revolution in this case) so this makes perfect sense and ties with the circumstances these notes were issued under. I now wonder how many of the 'blocks' still have examples in existence?