Classic lady playing the tambourine Greiner & Holzapfel (1800-1815)

please click over the pictures to display it full lengh, they deserve to be watch
We bought this wonderful figurine several years ago to Olga Caro in Belgrano st. It is marked under with a single capital letter a R blue underglazed. It is almost 40 cm high. When I saw it I decided that It was done for me. Then, I thought it was Art Nouveau, now I am no longer convinced. Yesterday while searching on the web for the newest addition, next post, I saw a very similar one.
http://www.ebay.com/itm/18C-German-Parian-Bisque-Figural-Spill-Vase-Tambourine-Player-RAUENSTEIN-/381610893872?hash=item58d9c82230:g:EKAAAOSwPcVVyrSj .
It is similar buy also very different since the back has not the hollow column for the spills, but the legs, the dress, everything is identical. The seller says it is RAUENSTEIN, but in the reference site it clearly denied this, Single capital 'R' above the number '1762', often incorectly claimed to be a Greiner (Rauenstein, Thuringia) mark. http://www.porcelainmarksandmore.com/resources/misrepresented-marks/initials/index.php
Our figurine has an R that could be interpreted as being exactly that, since in the site
http://www.porcelainsite.com/porcelain/marks/volkstedt.shtml shows similar marks and state they are Aelteste Volkstedter Porzellanfabrik Greiner & Holzapfel (1800-1815), and is very similar to the underneath of this other figurine here http://www.ebay.es/itm/Raro-Antiguo-Porcelana-Grande-1800-1817-grupo-por-Greiner-de-Holzapfel-Volkstedt-AR-8-/162136894291 that is also atributed to Greiner & Holzapfel. It is difficult for me to believe they are so old. The enamel is supreme, it seems Meissenm observe the hair and the eyes…..
We would appreciate any commentary. Thanks to everybody for looking our items