This challenging Mexico "Arquitectura y Arqueologia" series, globally known and very popular, is being collected according to the criteria of the 9 papers, going well beyond Scott and Michel listings, if you have not done so yet, go ahead and start studying the characteristics of the 9 papers, you can find inside my ebay store, a complete "classification listing" and a "classification guide" of all the stamps of this series, ordered by papers.

The paper classification is made according to:  watermark type and orintation, luminescence on anverse side and satin finish. The stamp classification add: design, denomination, printing technique, imprint, color, perforation ( size and coil ), security burelage, hole size,  overprints, and plate size.

The number of stamps listed or classified for complete Mexico "Arquitectura y Arqueologia"  serie are: Scott 203,  Michel 242,  Celis 349, etiangui 430.

Almost all Mexico Arquitectura etiangui 430 stamps could be found here at etiangui Ebay store  ( stores.ebay.com/etiangui/ )