Karl August Kuntzsch artist of founder Carl Thieme  signed in lower right corner of front floral panel in mahogany color paint, 
by artist Lenar -- who painted a lot of pierced plates and chargers as well as porcelain encrusted with applied flowers.
There are several examples on the internet now of Lenar's painted flowers.

Beautiful floral large 12" vase or urn, 7" wide marked on the pedestal base above glaze with the SP (Saxony Porcelain and dot for crown) Dresden mark in blue, and Saxony in green on the foot.  Saxony is a landlocked federal state of Germany, bordering the federal states of Brandenburg, Saxony Anhalt, Thuringia, and Bavaria, as well as the countries of Poland and the Czech Republic  The SP used since 1901 stands for Saxonian Porcelain Factory Dreseden and the factory still produces porcelains.  This urn style with the handles is highly sought after.  After 1936 the company was not allowed to use the gold trim due to economy and war efforts so it is believed this is c.1901-1936 in age and indicated by the square nut (pre-machine-made nuts) that join the two parts.  Artist Lenar signed the front panel.  
Some of the artists worked at the plant their entire lives.

Great condition, no cracks, clean inside and under the pedestal.  There are a few dots of cobalt blue on the white interior side of the vase.  Some of the gold exterior dots and gold decorations are slightly worn from dusting.  The flowers are crisp, finely detailed and bright.  Sharply cut 4 sided nuts and bolt hold the base to the urn and these 4-sided nuts suggest the piece was made before molded machine made hex nuts were available.

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(Above glaze marks were common for Dresden wares and much of it was not painted in Dresden.  There were many locations where the wares were decorated and painted such that they were using slightly different marks above glaze and under glaze.  In many examples you will see the lamb/Dresden marked above glaze and the SP Dresden marked above glaze.)

When I google Dresden Lenar many pieces were signed by this artist.

This is likely from founder Carl Thieme's original location and is not their top quality work based on the marks and lack of more detailed marks or numbers.  Likely made after Thieme passed away after 1888, from wikipedia:  
One of Thiemes best employees was Karl August Kuntzsch, a talented flower modeller and later his son-in-law and business partner. He founded the big tradition of opulent flower covering which is still very characteristic for Dresden Porcelain. This piece is hand painted, no decals, under magnification all brush strokes are there.  After the death of Thieme he proved himself as a far-sighted entrepreneur who continued the business successfully and introduced Dresden Porcelain to the international markets.  Around 1900 the triumphal course around the world --

Kuntzsch travelled to the United States, organised the export throughout Europe and won international awards and medals for example at the international industrial exhibition in Brussels 1897, at the World exposition in Paris in 1900, and various art exhibitions. He made the Dresden Porcelain world-famous.

1901/02 Registered Trademark
There were different trademarks for Dresden Porcelain in the past. Since 1901, the blue “SP Dresden” (for Saxonian Porcelain Factory Dresden) is a protected trademark guaranteeing the authenticity of Dresden Porcelain.


NOTE:  Reassemble the vase after shipping: 
  The old bolt has the square cut (old and sharp, not hex machine made) nut, washers and pads all screwed together as you can see in the first photo.  Remove and place on the counter in order the pad-pad-washer-nut.  Leave on the bolt the washer and pad that go on the bottom pedestal.  Insert the bolt with the washer and bottom pad (pads between washer and base up into the base).  Stuff newspaper up in there to free up your hands to work on the top.

Screw on the optional pad that goes between pedestal and vase.  Set vase on top and reach in and screw down the inner pad, and washer then screw down the four-sided nut.  You might need a flat head screwdriver for the bottom and a plyers to hold the nut at the top as you gently tighten them just enough to hold the set together.  Do not tighten them so much they crack the vase.  You may know a better way to bolt it together. 

Order as seen in the photo: pedestal bolt, smaller pedestal washer, bottom pad, middle pad (optional?), vase pad, larger vase washer, four sided nut.