Dichotomic approach

This sub-forum is dedicated to one of the most interesting and complex definitive series in 20th Century philately: the Argentina 1935-51 Definitives

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Dichotomic approach

Notapor Rein » 24 Mar 2011 19:20

Imagen

Rein,

What do you think it is the best approach? The main division in PyRI is offset vs typo? or with/without watermark? or mate vs clay?

Alejandro,


the main division is offset-litho vs typography; second is uncoated [matt] vs coated [clay, tizado]

then the hard stuff: establishing the axis (direction of paper) / eje de enrollamiento AND establishing the paper wire - blue lines symmetrical vs blue lines asymmetrical ...

and further: the line of AЯ perpendicular to the axis [=orthogonal watermark] vs parallel to the axis [=parallel watermark]

Matt - MI 1, MI 2 MI 3, MI 4, MI 5, MI 6, MI 7, SF 1/2, SF 3, ZA 1, ZA 2 , ZA 3, ZA 4
Symmetrical - MI 1, MI 4 ; MI 2, MI 3, MI 7, SF 1/2, SF 3, ZA 2, ZA 4
Parallel - MI 1, MI 4 (the difference between them two is the density! MI 1 has 30/20, MI 4 has 24/22)
Orthogonal - MI 2, MI 3 = MI 7 [disputable]; ZA 2 = ZA 4 [disputable]
Diameter - MI 2, ZA 2 [8.5mm], MI 3 [10mm]

how to differentiate MI 2 and ZA 2? Timewise! MI 2 = 1937-1938, ZA 2 = 1954-1959; quite often (assumedly) no watermarks appear to be ZA! Practically all of them ARE produced in Zárate!!!! The Zárate papers have rough surfaces of the front - lots of grooves! MI 2 (Austriaco) has a heart-to heart distance of 16mm (instead of 17.5mm)....

Matt - MI 1, MI 2 MI 3, MI 4, MI 5, MI 6, MI 7, SF 1/2, SF 3, ZA 1, ZA 2 , ZA 3, ZA 4
Asymmetrical - MI 5, MI 6, ZA 1 = ZA 3 [disputable]
Parallel - MI 5
Orthogonal - MI 6, ZA 1
Diameter - MI 6 [10mm], ZA 1 (8.5mm)

Coated - TI 1, TI 2, TI 3, TI 4, TI 5, TI 6
Symmetrical - TI 1, TI 2, TI 4
Parallel - TI 1, TI 2, TI 4 (the difference between them is the density - TI 1 has 30/20, TI 2 has 30/16 and TI 4 has 24/22)

Coated - TI 1, TI 2, TI 3, TI 4, TI 5, TI 6
Asymmetrical - TI 3, TI 5, TI 6
Parallel - TI 3
Orthogonal - TI 5, TI 6 [the difference is in the thickness; TI 6 is very smooth and thin (delgado)]

to be continued ....
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Rein
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Re: Dichotomic approach

Notapor Alejandro Pettovello » 24 Mar 2011 19:54

Excellent!! This is what I say...

I will try to make a key with questions and options, just like the taxonomical ones...
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Alejandro Pettovello
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Re: Dichotomic approach

Notapor rubiera » 29 Mar 2011 20:18

Rein,

Did you use any software to design this taxonomy tree? very interesting!

tony
sitio Ingles/Español de P y R I
http://www.somestamps.com/arg3551/index.htm
sitio general:
http://www.somestamps.com/
blog de P y R I en Ingles
http://arg3551.blogspot.com/
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Re: Dichotomic approach

Notapor Rein » 30 Mar 2011 01:41

rubiera escribiste:Rein,

Did you use any software to design this taxonomy tree? very interesting!

tony


Tony,

No, this just the generic idea of a tree - in fact in is about Morse ;)

http://www.galeoptix.nl/fila/arg_1935_PyR_I_tree.htm

is a try-out for a real one for P&R I



to be continued ..
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Re: Dichotomic approach

Notapor rubiera » 07 Abr 2011 20:48

This is a great taxonomy.

tony
sitio Ingles/Español de P y R I
http://www.somestamps.com/arg3551/index.htm
sitio general:
http://www.somestamps.com/
blog de P y R I en Ingles
http://arg3551.blogspot.com/
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