Q Re Argentina Officials 1960-68

I would appreciate it if someone could identify the issue dates for SC O100, O112, O113, O115, O123, O126 and O131. Or guide me to an appropriate web site.

SC lists O112 thru O145 as 1960-68 in the heading to the list. Issue dates are given in a footnote at the end of the list, starting with year 1961. The above seven SC numbers are not identified in the footnote.

Normally, I would infer that these seven issues are from 1960, the first date given in the header. However, my copy (1999) of the catalog appears to have a typo/error in the footnote which makes it difficult to comprehend.

The footnote reads: "Issue dates: Nos. O122, O127, O135,1961. O122-O114, O116, O118, 1962...." One can see that O122 is listed twice and that the second entry "O122-O114" is incorrectly formatted.

Looking forward to the responses. Thanks in advance.
Donald

Scott considers the Prefix A + number as the same O types.

The GJ catalog doesn't help, since it doesn't give issue dates for the officials. My guess is the typo Scott did above was supposed to read:
Issue dates: Nos. O122, O127, O135,1961. O112-O114, O116, O118, 1962

Billsey: That O112-114 sounds logical to me and I am going to proceed on that basis. My foreign album is organized by date of issue, which is why the footnote in Scott threw me off.

Thanks for the reply.
Donald