Signatures On El Salvador Banknotes

-This is a good question. I wish we had more info to go on too. If you look at the banknote museum, there are yearly variations to P-115 (with little elaboration & no change in the P-code):
http://www.banknote.ws/COLLECTION/c...tm#1971-1974
The signatures appear the same for 1971 to 1974 & change on the 1975 version (as you've shown with the inserted pictures). You would think that Krause would have designated the 1975 (new signature) as P-115b? But the SCWPM is pretty vague with P-115.

Each year there were many dates issued & often these dates remain missing (obscure to us) since they only can only be reported IF collectors submit them.

In 1975, the size of the back seal changes from:


to the much smaller seal (on left) as seen here:


It would be interesting to know exactly (Month/Series) when the seal size actually changed to the small size. (Was there a change-over series?)

It would also be nice to know if there was any overlap in the issue of P-115 to P-120. Other countries have issued similar dated notes (but from different printers) so it would be nice to know if that occurred with these two versions of the 1 Colon (since we have records of P-115 going to 1977 which weren't reported in SCWPM & the SCWPM has P-120 dated for 1974 but there appears to be no notes until 1977).

This is great info!

I am wondering how you came to the conclusion that each series is 1,000,000 when notes have a 7 digit serial # (which would imply nearly 10,000,000 - 1)? Are there just 10 series denominators (2nd letter of the 2 letter prefixes)? In other words, would series UB run from 0000001 to 0100000 and then UC be 0100000 to 0200000?

So, if we could correct the P code it would be more like:
Front issued date 1971 + Quinteros signature + Large seal = P-115a
GN - GW
QA - QJ
HQ - HZ
PK - PT
IA - IJ

Front issued date 1972 + Dowson signature + small seal - P-115b
UB - UK
EF - EO
RK and RL

BTW: this is the highest RL I have seen ( a screenshot from eBay):

Your summary of 3 series (115a; 115b & 115c) is the type of info collectors need. It would be great to make a suggestion to the banknote book & the online resources (like Numista & banknote museum).

The other thing it implies is that P-115b is the shortest series:
Front issued date 1972 + Quinteros signature + Large seal =
IA - IJ
(this would be the 10M series to keep an eye on). Also the RK/RL (c) which looks to be the tail end of P-115.




-My best guess is that the 1971 (a) series is a 40M run. The 1972 "IA-IJ" Quinteros (b) series would be 10M short series & the Dowson (c) series would be 22M & short too, but the RL series would be the toughest.