Mexico - avant garde printing techniques - 1916-now

[Rein]

The 1934 definitives "Monumentos" had their sizes standardized by the Oficina de Hacienda - the smaller size for the "normal" stamps, the larger size for the Airmails.

Everything printed in screenless photogravure with an eventual exception for the higher values.

1934 Monumentos:










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[Rein]

1934 Monumentos - continued:










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[Rein]

1934 Monumentos - continued:










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[Rein]

1934 Monumentos - continued:



The 1 peso had probably the eagle in recess!



Purple in screenless photogravure, yellow in recess [?]



Purple and yellow in screenless photogravure







Purple and yellow in screenless photogravure - what happened to the ink?




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[Rein]

1934 Monumentos - continued:













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[Rein]

1934 Monumentos - continued:








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[Rein]

1934 Monumentos - continued:



Visitors from outer-space???



The red frame may be in recess!






to be continued

[Rein]

The 1916-1934 period had most of the stamps line-perforated [12] or roulleted [14 1/2] before the 2 standard sizes plus their comb/block perforations were introduced...

Line-perforations:



roulette:



rather irregular!



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[Rein]

A said above the 1934 standards sizes were as follows:

sheets of 10x10 - small sized - 22.6x28.4mm - number of teeth 12/15 -> 10.62:10:56




sheet of 6x5 - larger sized - 40.2x25.6mm - number of teeth 21/13 -> 10.45:10.16



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[Rein]

The 1916-1934 period had most of the stamps printed on paper without watermark or on calandered paper [satinado] with watermark 'diagonal Mexico Correos" - running backwards from the bottom right to the top left [on the depictured stamps]:

correos mexico:



mexico:



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[Rein]

Just before the new series of definitives started a few values of the previous one got 1934 standards sizes and their perforations:







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[Rein]

the 30c is the screenless version! The recess had line perforation 12!





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[Rein]

Not only postage stamps were printed in screenless photogravure -also postal stationery!







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[Rein]

The 1936 Goebel reel-fed photogravure press introduced for the 1936 Motorway commemoratives was also introducing new standard sizes!

The smaller size now 20.1x24.1mm and the larger size - exactly twice as large - 40.2x241.mm. Each stamp had 14 [or 28 teeth horizontally and 17 vertically. Perforation gauge: 13.93:14.11 i.e if we believe Celis Cano as to the measured sizes! Starting from 40x24mm the gauge will be 14.00:14.17

Sheets of 5x10 [larger size] and 10x10 [smaller size].







to be continued

[Rein]

The 1934 defnitives introduced in standard sizes by the Oficina Impresora de Hacienda were to be adapted for the new Goebel press!

It is not clear whether the T.I.E.V. were just the new name for the Government Printers and/or had to do with new premises for the Printing Works? Philatelists usually do not pay that much attention to such details and I can not find any in G. Celis Cano.

On 01.04.1937 a few values of the 1934 definitives were issued in reduced sizes and printed on the new GOEBEL!

Although the German Michel did refer to recess for the 1936 Motorway series, for the 1937 definitives Michel uses the term Rastertiefdruck or photogravure. Michel also mentioned: "Hergestellt mit den neuen deutschen Tiefdruckmaschinen" or manufactured by the new German photogravure/recess press. The German word Tiefdruck refers to both akin processes!

Neither Michel nor Celis Cano do tell us what to expect of the 01.04.1937 definitives! Are they screenless? Are they screened
like the tradtional photogravure? Or can we find both types of printig methods????

to be continued ...