Hi Birnando,
Jose Monserrat Pou E Hijos (JMS & Son) produced razors without Jose Monserrat Pou's name on the tang, including the Sello Doro, but the son did not survive his father very long and the company passed into the hands of the daughter, who along with her step-father stopped investing in the company. Changes in the Spanish Civil Code (CC) in 1985 saw a huge drop-off in sales to barbers and hairdressers. The prohibition had something to do with Swedish Steel, which was in use by the factory at that time, and fabrication from Italian and Pakistani sources was sought, hence the drop-off in quality of some of the last runs of razors. The last production run is supposed to have been in early 1990 - the actual US filing of the trademark was cancelled on the 25th of January 1990 (its first filing in the US seems to have been in 1940) and it was acquired by Margaret Frenkel Goldstein of Weiss, Dawid, Fross, Zelnick & Lehrman of 633 Third Avenue, NY. The very last razors seem to have no tang marks whatsoever.
The fact that the last razors had no tang markings could be something to do with not renewing the trademark, I suppose.
Attachment 117410
Regards,
Neil